// File: Strings.sol



pragma solidity ^0.8.0;

/**
 * @dev String operations.
 */
library Strings {
    bytes16 private constant alphabet = "0123456789abcdef";

    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function toString(uint256 value) internal pure returns (string memory) {
        // Inspired by OraclizeAPI's implementation - MIT licence
        // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol

        if (value == 0) {
            return "0";
        }
        uint256 temp = value;
        uint256 digits;
        while (temp != 0) {
            digits++;
            temp /= 10;
        }
        bytes memory buffer = new bytes(digits);
        while (value != 0) {
            digits -= 1;
            buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
            value /= 10;
        }
        return string(buffer);
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
     */
    function toHexString(uint256 value) internal pure returns (string memory) {
        if (value == 0) {
            return "0x00";
        }
        uint256 temp = value;
        uint256 length = 0;
        while (temp != 0) {
            length++;
            temp >>= 8;
        }
        return toHexString(value, length);
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
     */
    function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
        bytes memory buffer = new bytes(2 * length + 2);
        buffer[0] = "0";
        buffer[1] = "x";
        for (uint256 i = 2 * length + 1; i > 1; --i) {
            buffer[i] = alphabet[value & 0xf];
            value >>= 4;
        }
        require(value == 0, "Strings: hex length insufficient");
        return string(buffer);
    }

}
// File: ReentrancyGuard.sol



pragma solidity ^0.8.0;

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuard {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant _NOT_ENTERED = 1;
    uint256 private constant _ENTERED = 2;

    uint256 private _status;

    constructor () {
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and make it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        // On the first call to nonReentrant, _notEntered will be true
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

        // Any calls to nonReentrant after this point will fail
        _status = _ENTERED;

        _;

        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = _NOT_ENTERED;
    }
}
// File: Context.sol



pragma solidity ^0.8.0;

/*
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
        return msg.data;
    }
}
// File: Ownable.sol



pragma solidity ^0.8.0;

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor () {
        address msgSender = _msgSender();
        _owner = msgSender;
        emit OwnershipTransferred(address(0), msgSender);
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = address(0);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
}
// File: Constants.sol


pragma solidity ^0.8.13;

address constant CANONICAL_OPERATOR_FILTER_REGISTRY_ADDRESS = 0x000000000000AAeB6D7670E522A718067333cd4E;
address constant CANONICAL_CORI_SUBSCRIPTION = 0x3cc6CddA760b79bAfa08dF41ECFA224f810dCeB6;
// File: IOperatorFilterRegistry.sol


pragma solidity ^0.8.13;

interface IOperatorFilterRegistry {
    /**
     * @notice Returns true if operator is not filtered for a given token, either by address or codeHash. Also returns
     *         true if supplied registrant address is not registered.
     */
    function isOperatorAllowed(
        address registrant,
        address operator
    ) external view returns (bool);

    /**
     * @notice Registers an address with the registry. May be called by address itself or by EIP-173 owner.
     */
    function register(address registrant) external;

    /**
     * @notice Registers an address with the registry and "subscribes" to another address's filtered operators and codeHashes.
     */
    function registerAndSubscribe(
        address registrant,
        address subscription
    ) external;

    /**
     * @notice Registers an address with the registry and copies the filtered operators and codeHashes from another
     *         address without subscribing.
     */
    function registerAndCopyEntries(
        address registrant,
        address registrantToCopy
    ) external;

    /**
     * @notice Unregisters an address with the registry and removes its subscription. May be called by address itself or by EIP-173 owner.
     *         Note that this does not remove any filtered addresses or codeHashes.
     *         Also note that any subscriptions to this registrant will still be active and follow the existing filtered addresses and codehashes.
     */
    function unregister(address addr) external;

    /**
     * @notice Update an operator address for a registered address - when filtered is true, the operator is filtered.
     */
    function updateOperator(
        address registrant,
        address operator,
        bool filtered
    ) external;

    /**
     * @notice Update multiple operators for a registered address - when filtered is true, the operators will be filtered. Reverts on duplicates.
     */
    function updateOperators(
        address registrant,
        address[] calldata operators,
        bool filtered
    ) external;

    /**
     * @notice Update a codeHash for a registered address - when filtered is true, the codeHash is filtered.
     */
    function updateCodeHash(
        address registrant,
        bytes32 codehash,
        bool filtered
    ) external;

    /**
     * @notice Update multiple codeHashes for a registered address - when filtered is true, the codeHashes will be filtered. Reverts on duplicates.
     */
    function updateCodeHashes(
        address registrant,
        bytes32[] calldata codeHashes,
        bool filtered
    ) external;

    /**
     * @notice Subscribe an address to another registrant's filtered operators and codeHashes. Will remove previous
     *         subscription if present.
     *         Note that accounts with subscriptions may go on to subscribe to other accounts - in this case,
     *         subscriptions will not be forwarded. Instead the former subscription's existing entries will still be
     *         used.
     */
    function subscribe(
        address registrant,
        address registrantToSubscribe
    ) external;

    /**
     * @notice Unsubscribe an address from its current subscribed registrant, and optionally copy its filtered operators and codeHashes.
     */
    function unsubscribe(address registrant, bool copyExistingEntries) external;

    /**
     * @notice Get the subscription address of a given registrant, if any.
     */
    function subscriptionOf(address addr) external returns (address registrant);

    /**
     * @notice Get the set of addresses subscribed to a given registrant.
     *         Note that order is not guaranteed as updates are made.
     */
    function subscribers(
        address registrant
    ) external returns (address[] memory);

    /**
     * @notice Get the subscriber at a given index in the set of addresses subscribed to a given registrant.
     *         Note that order is not guaranteed as updates are made.
     */
    function subscriberAt(
        address registrant,
        uint256 index
    ) external returns (address);

    /**
     * @notice Copy filtered operators and codeHashes from a different registrantToCopy to addr.
     */
    function copyEntriesOf(
        address registrant,
        address registrantToCopy
    ) external;

    /**
     * @notice Returns true if operator is filtered by a given address or its subscription.
     */
    function isOperatorFiltered(
        address registrant,
        address operator
    ) external returns (bool);

    /**
     * @notice Returns true if the hash of an address's code is filtered by a given address or its subscription.
     */
    function isCodeHashOfFiltered(
        address registrant,
        address operatorWithCode
    ) external returns (bool);

    /**
     * @notice Returns true if a codeHash is filtered by a given address or its subscription.
     */
    function isCodeHashFiltered(
        address registrant,
        bytes32 codeHash
    ) external returns (bool);

    /**
     * @notice Returns a list of filtered operators for a given address or its subscription.
     */
    function filteredOperators(
        address addr
    ) external returns (address[] memory);

    /**
     * @notice Returns the set of filtered codeHashes for a given address or its subscription.
     *         Note that order is not guaranteed as updates are made.
     */
    function filteredCodeHashes(
        address addr
    ) external returns (bytes32[] memory);

    /**
     * @notice Returns the filtered operator at the given index of the set of filtered operators for a given address or
     *         its subscription.
     *         Note that order is not guaranteed as updates are made.
     */
    function filteredOperatorAt(
        address registrant,
        uint256 index
    ) external returns (address);

    /**
     * @notice Returns the filtered codeHash at the given index of the list of filtered codeHashes for a given address or
     *         its subscription.
     *         Note that order is not guaranteed as updates are made.
     */
    function filteredCodeHashAt(
        address registrant,
        uint256 index
    ) external returns (bytes32);

    /**
     * @notice Returns true if an address has registered
     */
    function isRegistered(address addr) external returns (bool);

    /**
     * @dev Convenience method to compute the code hash of an arbitrary contract
     */
    function codeHashOf(address addr) external returns (bytes32);
}
// File: OperatorFilterer.sol


pragma solidity ^0.8.13;



/**
 * @title  OperatorFilterer
 * @notice Abstract contract whose constructor automatically registers and optionally subscribes to or copies another
 *         registrant's entries in the OperatorFilterRegistry.
 * @dev    This smart contract is meant to be inherited by token contracts so they can use the following:
 *         - `onlyAllowedOperator` modifier for `transferFrom` and `safeTransferFrom` methods.
 *         - `onlyAllowedOperatorApproval` modifier for `approve` and `setApprovalForAll` methods.
 *         Please note that if your token contract does not provide an owner with EIP-173, it must provide
 *         administration methods on the contract itself to interact with the registry otherwise the subscription
 *         will be locked to the options set during construction.
 */

abstract contract OperatorFilterer {
    /// @dev Emitted when an operator is not allowed.
    error OperatorNotAllowed(address operator);

    IOperatorFilterRegistry public constant OPERATOR_FILTER_REGISTRY =
        IOperatorFilterRegistry(CANONICAL_OPERATOR_FILTER_REGISTRY_ADDRESS);

    /// @dev The constructor that is called when the contract is being deployed.
    constructor(address subscriptionOrRegistrantToCopy, bool subscribe) {
        // If an inheriting token contract is deployed to a network without the registry deployed, the modifier
        // will not revert, but the contract will need to be registered with the registry once it is deployed in
        // order for the modifier to filter addresses.
        if (address(OPERATOR_FILTER_REGISTRY).code.length > 0) {
            if (subscribe) {
                OPERATOR_FILTER_REGISTRY.registerAndSubscribe(
                    address(this),
                    subscriptionOrRegistrantToCopy
                );
            } else {
                if (subscriptionOrRegistrantToCopy != address(0)) {
                    OPERATOR_FILTER_REGISTRY.registerAndCopyEntries(
                        address(this),
                        subscriptionOrRegistrantToCopy
                    );
                } else {
                    OPERATOR_FILTER_REGISTRY.register(address(this));
                }
            }
        }
    }

    /**
     * @dev A helper function to check if an operator is allowed.
     */
    modifier onlyAllowedOperator(address from) virtual {
        // Allow spending tokens from addresses with balance
        // Note that this still allows listings and marketplaces with escrow to transfer tokens if transferred
        // from an EOA.
        if (from != msg.sender) {
            _checkFilterOperator(msg.sender);
        }
        _;
    }

    /**
     * @dev A helper function to check if an operator approval is allowed.
     */
    modifier onlyAllowedOperatorApproval(address operator) virtual {
        _checkFilterOperator(operator);
        _;
    }

    /**
     * @dev A helper function to check if an operator is allowed.
     */
    function _checkFilterOperator(address operator) internal view virtual {
        // Check registry code length to facilitate testing in environments without a deployed registry.
        if (address(OPERATOR_FILTER_REGISTRY).code.length > 0) {
            // under normal circumstances, this function will revert rather than return false, but inheriting contracts
            // may specify their own OperatorFilterRegistry implementations, which may behave differently
            if (
                !OPERATOR_FILTER_REGISTRY.isOperatorAllowed(
                    address(this),
                    operator
                )
            ) {
                revert OperatorNotAllowed(operator);
            }
        }
    }
}
// File: DefaultOperatorFilterer.sol


pragma solidity ^0.8.13;



/**
 * @title  DefaultOperatorFilterer
 * @notice Inherits from OperatorFilterer and automatically subscribes to the default OpenSea subscription.
 * @dev    Please note that if your token contract does not provide an owner with EIP-173, it must provide
 *         administration methods on the contract itself to interact with the registry otherwise the subscription
 *         will be locked to the options set during construction.
 */

abstract contract DefaultOperatorFilterer is OperatorFilterer {
    /// @dev The constructor that is called when the contract is being deployed.
    constructor() OperatorFilterer(CANONICAL_CORI_SUBSCRIPTION, true) {}
}
// File: IERC721A.sol


// ERC721A Contracts v4.2.3
// Creator: Chiru Labs

pragma solidity ^0.8.4;

/**
 * @dev Interface of ERC721A.
 */
interface IERC721A {
    /**
     * The caller must own the token or be an approved operator.
     */
    error ApprovalCallerNotOwnerNorApproved();

    /**
     * The token does not exist.
     */
    error ApprovalQueryForNonexistentToken();

    /**
     * Cannot query the balance for the zero address.
     */
    error BalanceQueryForZeroAddress();

    /**
     * Cannot mint to the zero address.
     */
    error MintToZeroAddress();

    /**
     * The quantity of tokens minted must be more than zero.
     */
    error MintZeroQuantity();

    /**
     * The token does not exist.
     */
    error OwnerQueryForNonexistentToken();

    /**
     * The caller must own the token or be an approved operator.
     */
    error TransferCallerNotOwnerNorApproved();

    /**
     * The token must be owned by `from`.
     */
    error TransferFromIncorrectOwner();

    /**
     * Cannot safely transfer to a contract that does not implement the
     * ERC721Receiver interface.
     */
    error TransferToNonERC721ReceiverImplementer();

    /**
     * Cannot transfer to the zero address.
     */
    error TransferToZeroAddress();

    /**
     * The token does not exist.
     */
    error URIQueryForNonexistentToken();

    /**
     * The `quantity` minted with ERC2309 exceeds the safety limit.
     */
    error MintERC2309QuantityExceedsLimit();

    /**
     * The `extraData` cannot be set on an unintialized ownership slot.
     */
    error OwnershipNotInitializedForExtraData();

    // =============================================================
    //                            STRUCTS
    // =============================================================

    struct TokenOwnership {
        // The address of the owner.
        address addr;
        // Stores the start time of ownership with minimal overhead for tokenomics.
        uint64 startTimestamp;
        // Whether the token has been burned.
        bool burned;
        // Arbitrary data similar to `startTimestamp` that can be set via {_extraData}.
        uint24 extraData;
    }

    // =============================================================
    //                         TOKEN COUNTERS
    // =============================================================

    /**
     * @dev Returns the total number of tokens in existence.
     * Burned tokens will reduce the count.
     * To get the total number of tokens minted, please see {_totalMinted}.
     */
    function totalSupply() external view returns (uint256);

    // =============================================================
    //                            IERC165
    // =============================================================

    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);

    // =============================================================
    //                            IERC721
    // =============================================================

    /**
     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.
     */
    event Transfer(
        address indexed from,
        address indexed to,
        uint256 indexed tokenId
    );

    /**
     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
     */
    event Approval(
        address indexed owner,
        address indexed approved,
        uint256 indexed tokenId
    );

    /**
     * @dev Emitted when `owner` enables or disables
     * (`approved`) `operator` to manage all of its assets.
     */
    event ApprovalForAll(
        address indexed owner,
        address indexed operator,
        bool approved
    );

    /**
     * @dev Returns the number of tokens in `owner`'s account.
     */
    function balanceOf(address owner) external view returns (uint256 balance);

    /**
     * @dev Returns the owner of the `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function ownerOf(uint256 tokenId) external view returns (address owner);

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`,
     * checking first that contract recipients are aware of the ERC721 protocol
     * to prevent tokens from being forever locked.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be have been allowed to move
     * this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement
     * {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes calldata data
    ) external payable;

    /**
     * @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external payable;

    /**
     * @dev Transfers `tokenId` from `from` to `to`.
     *
     * WARNING: Usage of this method is discouraged, use {safeTransferFrom}
     * whenever possible.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token
     * by either {approve} or {setApprovalForAll}.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external payable;

    /**
     * @dev Gives permission to `to` to transfer `tokenId` token to another account.
     * The approval is cleared when the token is transferred.
     *
     * Only a single account can be approved at a time, so approving the
     * zero address clears previous approvals.
     *
     * Requirements:
     *
     * - The caller must own the token or be an approved operator.
     * - `tokenId` must exist.
     *
     * Emits an {Approval} event.
     */
    function approve(address to, uint256 tokenId) external payable;

    /**
     * @dev Approve or remove `operator` as an operator for the caller.
     * Operators can call {transferFrom} or {safeTransferFrom}
     * for any token owned by the caller.
     *
     * Requirements:
     *
     * - The `operator` cannot be the caller.
     *
     * Emits an {ApprovalForAll} event.
     */
    function setApprovalForAll(address operator, bool _approved) external;

    /**
     * @dev Returns the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(
        uint256 tokenId
    ) external view returns (address operator);

    /**
     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
     *
     * See {setApprovalForAll}.
     */
    function isApprovedForAll(
        address owner,
        address operator
    ) external view returns (bool);

    // =============================================================
    //                        IERC721Metadata
    // =============================================================

    /**
     * @dev Returns the token collection name.
     */
    function name() external view returns (string memory);

    /**
     * @dev Returns the token collection symbol.
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
     */
    function tokenURI(uint256 tokenId) external view returns (string memory);

    // =============================================================
    //                           IERC2309
    // =============================================================

    /**
     * @dev Emitted when tokens in `fromTokenId` to `toTokenId`
     * (inclusive) is transferred from `from` to `to`, as defined in the
     * [ERC2309](https://eips.ethereum.org/EIPS/eip-2309) standard.
     *
     * See {_mintERC2309} for more details.
     */
    event ConsecutiveTransfer(
        uint256 indexed fromTokenId,
        uint256 toTokenId,
        address indexed from,
        address indexed to
    );
}
// File: ERC721A.sol


// ERC721A Contracts v4.2.3
// Creator: Chiru Labs

pragma solidity ^0.8.4;


/**
 * @dev Interface of ERC721 token receiver.
 */
interface ERC721A__IERC721Receiver {
    function onERC721Received(
        address operator,
        address from,
        uint256 tokenId,
        bytes calldata data
    ) external returns (bytes4);
}

/**
 * @title ERC721A
 *
 * @dev Implementation of the [ERC721](https://eips.ethereum.org/EIPS/eip-721)
 * Non-Fungible Token Standard, including the Metadata extension.
 * Optimized for lower gas during batch mints.
 *
 * Token IDs are minted in sequential order (e.g. 0, 1, 2, 3, ...)
 * starting from `_startTokenId()`.
 *
 * Assumptions:
 *
 * - An owner cannot have more than 2**64 - 1 (max value of uint64) of supply.
 * - The maximum token ID cannot exceed 2**256 - 1 (max value of uint256).
 */
contract ERC721A is IERC721A {
    // Bypass for a `--via-ir` bug (https://github.com/chiru-labs/ERC721A/pull/364).
    struct TokenApprovalRef {
        address value;
    }

    // =============================================================
    //                           CONSTANTS
    // =============================================================

    // Mask of an entry in packed address data.
    uint256 private constant _BITMASK_ADDRESS_DATA_ENTRY = (1 << 64) - 1;

    // The bit position of `numberMinted` in packed address data.
    uint256 private constant _BITPOS_NUMBER_MINTED = 64;

    // The bit position of `numberBurned` in packed address data.
    uint256 private constant _BITPOS_NUMBER_BURNED = 128;

    // The bit position of `aux` in packed address data.
    uint256 private constant _BITPOS_AUX = 192;

    // Mask of all 256 bits in packed address data except the 64 bits for `aux`.
    uint256 private constant _BITMASK_AUX_COMPLEMENT = (1 << 192) - 1;

    // The bit position of `startTimestamp` in packed ownership.
    uint256 private constant _BITPOS_START_TIMESTAMP = 160;

    // The bit mask of the `burned` bit in packed ownership.
    uint256 private constant _BITMASK_BURNED = 1 << 224;

    // The bit position of the `nextInitialized` bit in packed ownership.
    uint256 private constant _BITPOS_NEXT_INITIALIZED = 225;

    // The bit mask of the `nextInitialized` bit in packed ownership.
    uint256 private constant _BITMASK_NEXT_INITIALIZED = 1 << 225;

    // The bit position of `extraData` in packed ownership.
    uint256 private constant _BITPOS_EXTRA_DATA = 232;

    // Mask of all 256 bits in a packed ownership except the 24 bits for `extraData`.
    uint256 private constant _BITMASK_EXTRA_DATA_COMPLEMENT = (1 << 232) - 1;

    // The mask of the lower 160 bits for addresses.
    uint256 private constant _BITMASK_ADDRESS = (1 << 160) - 1;

    // The maximum `quantity` that can be minted with {_mintERC2309}.
    // This limit is to prevent overflows on the address data entries.
    // For a limit of 5000, a total of 3.689e15 calls to {_mintERC2309}
    // is required to cause an overflow, which is unrealistic.
    uint256 private constant _MAX_MINT_ERC2309_QUANTITY_LIMIT = 5000;

    // The `Transfer` event signature is given by:
    // `keccak256(bytes("Transfer(address,address,uint256)"))`.
    bytes32 private constant _TRANSFER_EVENT_SIGNATURE =
        0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef;

    // =============================================================
    //                            STORAGE
    // =============================================================

    // The next token ID to be minted.
    uint256 private _currentIndex;

    // The number of tokens burned.
    uint256 private _burnCounter;

    // Token name
    string private _name;

    // Token symbol
    string private _symbol;

    // Mapping from token ID to ownership details
    // An empty struct value does not necessarily mean the token is unowned.
    // See {_packedOwnershipOf} implementation for details.
    //
    // Bits Layout:
    // - [0..159]   `addr`
    // - [160..223] `startTimestamp`
    // - [224]      `burned`
    // - [225]      `nextInitialized`
    // - [232..255] `extraData`
    mapping(uint256 => uint256) private _packedOwnerships;

    // Mapping owner address to address data.
    //
    // Bits Layout:
    // - [0..63]    `balance`
    // - [64..127]  `numberMinted`
    // - [128..191] `numberBurned`
    // - [192..255] `aux`
    mapping(address => uint256) private _packedAddressData;

    // Mapping from token ID to approved address.
    mapping(uint256 => TokenApprovalRef) private _tokenApprovals;

    // Mapping from owner to operator approvals
    mapping(address => mapping(address => bool)) private _operatorApprovals;

    mapping(uint256 => TokenOwnership) private _ownerships;

    // =============================================================
    //                          CONSTRUCTOR
    // =============================================================

    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
        _currentIndex = _startTokenId();
    }

    // =============================================================
    //                   TOKEN COUNTING OPERATIONS
    // =============================================================

    /**
     * @dev Returns the starting token ID.
     * To change the starting token ID, please override this function.
     */
    function _startTokenId() internal view virtual returns (uint256) {
        return 0;
    }

    /**
     * @dev Returns the next token ID to be minted.
     */
    function _nextTokenId() internal view virtual returns (uint256) {
        return _currentIndex;
    }

    /**
     * @dev Returns the total number of tokens in existence.
     * Burned tokens will reduce the count.
     * To get the total number of tokens minted, please see {_totalMinted}.
     */
    function totalSupply() public view virtual override returns (uint256) {
        // Counter underflow is impossible as _burnCounter cannot be incremented
        // more than `_currentIndex - _startTokenId()` times.
        unchecked {
            return _currentIndex - _startTokenId();
        }
    }

    /**
     * @dev Returns the total amount of tokens minted in the contract.
     */
    function _totalMinted() internal view virtual returns (uint256) {
        // Counter underflow is impossible as `_currentIndex` does not decrement,
        // and it is initialized to `_startTokenId()`.
        unchecked {
            return _currentIndex - _startTokenId();
        }
    }

    /**
     * @dev Returns the total number of tokens burned.
     */
    function _totalBurned() internal view virtual returns (uint256) {
        return _burnCounter;
    }

    // =============================================================
    //                    ADDRESS DATA OPERATIONS
    // =============================================================

    /**
     * @dev Returns the number of tokens in `owner`'s account.
     */
    function balanceOf(
        address owner
    ) public view virtual override returns (uint256) {
        if (owner == address(0)) _revert(BalanceQueryForZeroAddress.selector);
        return _packedAddressData[owner] & _BITMASK_ADDRESS_DATA_ENTRY;
    }

    /**
     * Returns the number of tokens minted by `owner`.
     */
    function _numberMinted(address owner) internal view returns (uint256) {
        return
            (_packedAddressData[owner] >> _BITPOS_NUMBER_MINTED) &
            _BITMASK_ADDRESS_DATA_ENTRY;
    }

    /**
     * Returns the number of tokens burned by or on behalf of `owner`.
     */
    function _numberBurned(address owner) internal view returns (uint256) {
        return
            (_packedAddressData[owner] >> _BITPOS_NUMBER_BURNED) &
            _BITMASK_ADDRESS_DATA_ENTRY;
    }

    /**
     * Returns the auxiliary data for `owner`. (e.g. number of whitelist mint slots used).
     */
    function _getAux(address owner) internal view returns (uint64) {
        return uint64(_packedAddressData[owner] >> _BITPOS_AUX);
    }

    /**
     * Sets the auxiliary data for `owner`. (e.g. number of whitelist mint slots used).
     * If there are multiple variables, please pack them into a uint64.
     */
    function _setAux(address owner, uint64 aux) internal virtual {
        uint256 packed = _packedAddressData[owner];
        uint256 auxCasted;
        // Cast `aux` with assembly to avoid redundant masking.
        assembly {
            auxCasted := aux
        }
        packed =
            (packed & _BITMASK_AUX_COMPLEMENT) |
            (auxCasted << _BITPOS_AUX);
        _packedAddressData[owner] = packed;
    }

    // =============================================================
    //                            IERC165
    // =============================================================

    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30000 gas.
     */
    function supportsInterface(
        bytes4 interfaceId
    ) public view virtual override returns (bool) {
        // The interface IDs are constants representing the first 4 bytes
        // of the XOR of all function selectors in the interface.
        // See: [ERC165](https://eips.ethereum.org/EIPS/eip-165)
        // (e.g. `bytes4(i.functionA.selector ^ i.functionB.selector ^ ...)`)
        return
            interfaceId == 0x01ffc9a7 || // ERC165 interface ID for ERC165.
            interfaceId == 0x80ac58cd || // ERC165 interface ID for ERC721.
            interfaceId == 0x5b5e139f; // ERC165 interface ID for ERC721Metadata.
    }

    // =============================================================
    //                        IERC721Metadata
    // =============================================================

    /**
     * @dev Returns the token collection name.
     */
    function name() public view virtual override returns (string memory) {
        return _name;
    }

    /**
     * @dev Returns the token collection symbol.
     */
    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }

    /**
     * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
     */
    function tokenURI(
        uint256 tokenId
    ) public view virtual override returns (string memory) {
        if (!_exists(tokenId)) _revert(URIQueryForNonexistentToken.selector);

        string memory baseURI = _baseURI();
        return
            bytes(baseURI).length != 0
                ? string(abi.encodePacked(baseURI, _toString(tokenId)))
                : "";
    }

    /**
     * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
     * token will be the concatenation of the `baseURI` and the `tokenId`. Empty
     * by default, it can be overridden in child contracts.
     */
    function _baseURI() internal view virtual returns (string memory) {
        return "";
    }

    // =============================================================
    //                     OWNERSHIPS OPERATIONS
    // =============================================================

    /**
     * @dev Returns the owner of the `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function ownerOf(
        uint256 tokenId
    ) public view virtual override returns (address) {
        return address(uint160(_packedOwnershipOf(tokenId)));
    }

    /**
     * @dev Gas spent here starts off proportional to the maximum mint batch size.
     * It gradually moves to O(1) as tokens get transferred around over time.
     */
    function _ownershipOf(
        uint256 tokenId
    ) internal view virtual returns (TokenOwnership memory) {
        return _unpackedOwnership(_packedOwnershipOf(tokenId));
    }

    /**
     * @dev Returns the unpacked `TokenOwnership` struct at `index`.
     */
    function _ownershipAt(
        uint256 index
    ) internal view virtual returns (TokenOwnership memory) {
        return _unpackedOwnership(_packedOwnerships[index]);
    }

    /**
     * @dev Returns whether the ownership slot at `index` is initialized.
     * An uninitialized slot does not necessarily mean that the slot has no owner.
     */
    function _ownershipIsInitialized(
        uint256 index
    ) internal view virtual returns (bool) {
        return _packedOwnerships[index] != 0;
    }

    /**
     * @dev Initializes the ownership slot minted at `index` for efficiency purposes.
     */
    function _initializeOwnershipAt(uint256 index) internal virtual {
        if (_packedOwnerships[index] == 0) {
            _packedOwnerships[index] = _packedOwnershipOf(index);
        }
    }

    /**
     * Returns the packed ownership data of `tokenId`.
     */
    function _packedOwnershipOf(
        uint256 tokenId
    ) private view returns (uint256 packed) {
        if (_startTokenId() <= tokenId) {
            packed = _packedOwnerships[tokenId];
            // If the data at the starting slot does not exist, start the scan.
            if (packed == 0) {
                if (tokenId >= _currentIndex)
                    _revert(OwnerQueryForNonexistentToken.selector);
                // Invariant:
                // There will always be an initialized ownership slot
                // (i.e. `ownership.addr != address(0) && ownership.burned == false`)
                // before an unintialized ownership slot
                // (i.e. `ownership.addr == address(0) && ownership.burned == false`)
                // Hence, `tokenId` will not underflow.
                //
                // We can directly compare the packed value.
                // If the address is zero, packed will be zero.
                for (;;) {
                    unchecked {
                        packed = _packedOwnerships[--tokenId];
                    }
                    if (packed == 0) continue;
                    if (packed & _BITMASK_BURNED == 0) return packed;
                    // Otherwise, the token is burned, and we must revert.
                    // This handles the case of batch burned tokens, where only the burned bit
                    // of the starting slot is set, and remaining slots are left uninitialized.
                    _revert(OwnerQueryForNonexistentToken.selector);
                }
            }
            // Otherwise, the data exists and we can skip the scan.
            // This is possible because we have already achieved the target condition.
            // This saves 2143 gas on transfers of initialized tokens.
            // If the token is not burned, return `packed`. Otherwise, revert.
            if (packed & _BITMASK_BURNED == 0) return packed;
        }
        _revert(OwnerQueryForNonexistentToken.selector);
    }

    /**
     * @dev Returns the unpacked `TokenOwnership` struct from `packed`.
     */
    function _unpackedOwnership(
        uint256 packed
    ) private pure returns (TokenOwnership memory ownership) {
        ownership.addr = address(uint160(packed));
        ownership.startTimestamp = uint64(packed >> _BITPOS_START_TIMESTAMP);
        ownership.burned = packed & _BITMASK_BURNED != 0;
        ownership.extraData = uint24(packed >> _BITPOS_EXTRA_DATA);
    }

    /**
     * @dev Packs ownership data into a single uint256.
     */
    function _packOwnershipData(
        address owner,
        uint256 flags
    ) private view returns (uint256 result) {
        assembly {
            // Mask `owner` to the lower 160 bits, in case the upper bits somehow aren't clean.
            owner := and(owner, _BITMASK_ADDRESS)
            // `owner | (block.timestamp << _BITPOS_START_TIMESTAMP) | flags`.
            result := or(
                owner,
                or(shl(_BITPOS_START_TIMESTAMP, timestamp()), flags)
            )
        }
    }

    /**
     * @dev Returns the `nextInitialized` flag set if `quantity` equals 1.
     */
    function _nextInitializedFlag(
        uint256 quantity
    ) private pure returns (uint256 result) {
        // For branchless setting of the `nextInitialized` flag.
        assembly {
            // `(quantity == 1) << _BITPOS_NEXT_INITIALIZED`.
            result := shl(_BITPOS_NEXT_INITIALIZED, eq(quantity, 1))
        }
    }

    // =============================================================
    //                      APPROVAL OPERATIONS
    // =============================================================

    /**
     * @dev Gives permission to `to` to transfer `tokenId` token to another account. See {ERC721A-_approve}.
     *
     * Requirements:
     *
     * - The caller must own the token or be an approved operator.
     */
    function approve(
        address to,
        uint256 tokenId
    ) public payable virtual override {
        _approve(to, tokenId, true);
    }

    /**
     * @dev Returns the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(
        uint256 tokenId
    ) public view virtual override returns (address) {
        if (!_exists(tokenId))
            _revert(ApprovalQueryForNonexistentToken.selector);

        return _tokenApprovals[tokenId].value;
    }

    /**
     * @dev Approve or remove `operator` as an operator for the caller.
     * Operators can call {transferFrom} or {safeTransferFrom}
     * for any token owned by the caller.
     *
     * Requirements:
     *
     * - The `operator` cannot be the caller.
     *
     * Emits an {ApprovalForAll} event.
     */
    function setApprovalForAll(
        address operator,
        bool approved
    ) public virtual override {
        _operatorApprovals[_msgSenderERC721A()][operator] = approved;
        emit ApprovalForAll(_msgSenderERC721A(), operator, approved);
    }

    /**
     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
     *
     * See {setApprovalForAll}.
     */
    function isApprovedForAll(
        address owner,
        address operator
    ) public view virtual override returns (bool) {
        return _operatorApprovals[owner][operator];
    }

    /**
     * @dev Returns whether `tokenId` exists.
     *
     * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
     *
     * Tokens start existing when they are minted. See {_mint}.
     */
    function _exists(
        uint256 tokenId
    ) internal view virtual returns (bool result) {
        if (_startTokenId() <= tokenId) {
            if (tokenId < _currentIndex) {
                uint256 packed;
                while ((packed = _packedOwnerships[tokenId]) == 0) --tokenId;
                result = packed & _BITMASK_BURNED == 0;
            }
        }
    }

    /**
     * @dev Returns whether `msgSender` is equal to `approvedAddress` or `owner`.
     */
    function _isSenderApprovedOrOwner(
        address approvedAddress,
        address owner,
        address msgSender
    ) private pure returns (bool result) {
        assembly {
            // Mask `owner` to the lower 160 bits, in case the upper bits somehow aren't clean.
            owner := and(owner, _BITMASK_ADDRESS)
            // Mask `msgSender` to the lower 160 bits, in case the upper bits somehow aren't clean.
            msgSender := and(msgSender, _BITMASK_ADDRESS)
            // `msgSender == owner || msgSender == approvedAddress`.
            result := or(eq(msgSender, owner), eq(msgSender, approvedAddress))
        }
    }

    /**
     * @dev Returns the storage slot and value for the approved address of `tokenId`.
     */
    function _getApprovedSlotAndAddress(
        uint256 tokenId
    )
        private
        view
        returns (uint256 approvedAddressSlot, address approvedAddress)
    {
        TokenApprovalRef storage tokenApproval = _tokenApprovals[tokenId];
        // The following is equivalent to `approvedAddress = _tokenApprovals[tokenId].value`.
        assembly {
            approvedAddressSlot := tokenApproval.slot
            approvedAddress := sload(approvedAddressSlot)
        }
    }

    // =============================================================
    //                      TRANSFER OPERATIONS
    // =============================================================

    /**
     * @dev Transfers `tokenId` from `from` to `to`.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token
     * by either {approve} or {setApprovalForAll}.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public payable virtual override {
        uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId);

        // Mask `from` to the lower 160 bits, in case the upper bits somehow aren't clean.
        from = address(uint160(uint256(uint160(from)) & _BITMASK_ADDRESS));

        if (address(uint160(prevOwnershipPacked)) != from)
            _revert(TransferFromIncorrectOwner.selector);

        (
            uint256 approvedAddressSlot,
            address approvedAddress
        ) = _getApprovedSlotAndAddress(tokenId);

        // The nested ifs save around 20+ gas over a compound boolean condition.
        if (
            !_isSenderApprovedOrOwner(
                approvedAddress,
                from,
                _msgSenderERC721A()
            )
        )
            if (!isApprovedForAll(from, _msgSenderERC721A()))
                _revert(TransferCallerNotOwnerNorApproved.selector);

        _beforeTokenTransfers(from, to, tokenId, 1);

        // Clear approvals from the previous owner.
        assembly {
            if approvedAddress {
                // This is equivalent to `delete _tokenApprovals[tokenId]`.
                sstore(approvedAddressSlot, 0)
            }
        }

        // Underflow of the sender's balance is impossible because we check for
        // ownership above and the recipient's balance can't realistically overflow.
        // Counter overflow is incredibly unrealistic as `tokenId` would have to be 2**256.
        unchecked {
            // We can directly increment and decrement the balances.
            --_packedAddressData[from]; // Updates: `balance -= 1`.
            ++_packedAddressData[to]; // Updates: `balance += 1`.

            // Updates:
            // - `address` to the next owner.
            // - `startTimestamp` to the timestamp of transfering.
            // - `burned` to `false`.
            // - `nextInitialized` to `true`.
            _packedOwnerships[tokenId] = _packOwnershipData(
                to,
                _BITMASK_NEXT_INITIALIZED |
                    _nextExtraData(from, to, prevOwnershipPacked)
            );

            // If the next slot may not have been initialized (i.e. `nextInitialized == false`) .
            if (prevOwnershipPacked & _BITMASK_NEXT_INITIALIZED == 0) {
                uint256 nextTokenId = tokenId + 1;
                // If the next slot's address is zero and not burned (i.e. packed value is zero).
                if (_packedOwnerships[nextTokenId] == 0) {
                    // If the next slot is within bounds.
                    if (nextTokenId != _currentIndex) {
                        // Initialize the next slot to maintain correctness for `ownerOf(tokenId + 1)`.
                        _packedOwnerships[nextTokenId] = prevOwnershipPacked;
                    }
                }
            }
        }

        // Mask `to` to the lower 160 bits, in case the upper bits somehow aren't clean.
        uint256 toMasked = uint256(uint160(to)) & _BITMASK_ADDRESS;
        assembly {
            // Emit the `Transfer` event.
            log4(
                0, // Start of data (0, since no data).
                0, // End of data (0, since no data).
                _TRANSFER_EVENT_SIGNATURE, // Signature.
                from, // `from`.
                toMasked, // `to`.
                tokenId // `tokenId`.
            )
        }
        if (toMasked == 0) _revert(TransferToZeroAddress.selector);

        _afterTokenTransfers(from, to, tokenId, 1);
    }

    /**
     * @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public payable virtual override {
        safeTransferFrom(from, to, tokenId, "");
    }

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token
     * by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement
     * {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) public payable virtual override {
        transferFrom(from, to, tokenId);
        if (to.code.length != 0)
            if (!_checkContractOnERC721Received(from, to, tokenId, _data)) {
                _revert(TransferToNonERC721ReceiverImplementer.selector);
            }
    }

    /**
     * @dev Hook that is called before a set of serially-ordered token IDs
     * are about to be transferred. This includes minting.
     * And also called before burning one token.
     *
     * `startTokenId` - the first token ID to be transferred.
     * `quantity` - the amount to be transferred.
     *
     * Calling conditions:
     *
     * - When `from` and `to` are both non-zero, `from`'s `tokenId` will be
     * transferred to `to`.
     * - When `from` is zero, `tokenId` will be minted for `to`.
     * - When `to` is zero, `tokenId` will be burned by `from`.
     * - `from` and `to` are never both zero.
     */
    function _beforeTokenTransfers(
        address from,
        address to,
        uint256 startTokenId,
        uint256 quantity
    ) internal virtual {}

    /**
     * @dev Hook that is called after a set of serially-ordered token IDs
     * have been transferred. This includes minting.
     * And also called after one token has been burned.
     *
     * `startTokenId` - the first token ID to be transferred.
     * `quantity` - the amount to be transferred.
     *
     * Calling conditions:
     *
     * - When `from` and `to` are both non-zero, `from`'s `tokenId` has been
     * transferred to `to`.
     * - When `from` is zero, `tokenId` has been minted for `to`.
     * - When `to` is zero, `tokenId` has been burned by `from`.
     * - `from` and `to` are never both zero.
     */
    function _afterTokenTransfers(
        address from,
        address to,
        uint256 startTokenId,
        uint256 quantity
    ) internal virtual {}

    /**
     * @dev Private function to invoke {IERC721Receiver-onERC721Received} on a target contract.
     *
     * `from` - Previous owner of the given token ID.
     * `to` - Target address that will receive the token.
     * `tokenId` - Token ID to be transferred.
     * `_data` - Optional data to send along with the call.
     *
     * Returns whether the call correctly returned the expected magic value.
     */
    function _checkContractOnERC721Received(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) private returns (bool) {
        try
            ERC721A__IERC721Receiver(to).onERC721Received(
                _msgSenderERC721A(),
                from,
                tokenId,
                _data
            )
        returns (bytes4 retval) {
            return
                retval ==
                ERC721A__IERC721Receiver(to).onERC721Received.selector;
        } catch (bytes memory reason) {
            if (reason.length == 0) {
                _revert(TransferToNonERC721ReceiverImplementer.selector);
            }
            assembly {
                revert(add(32, reason), mload(reason))
            }
        }
    }

    // =============================================================
    //                        MINT OPERATIONS
    // =============================================================

    /**
     * @dev Mints `quantity` tokens and transfers them to `to`.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - `quantity` must be greater than 0.
     *
     * Emits a {Transfer} event for each mint.
     */
    function _mint(address to, uint256 quantity) internal virtual {
        uint256 startTokenId = _currentIndex;
        if (quantity == 0) _revert(MintZeroQuantity.selector);

        _beforeTokenTransfers(address(0), to, startTokenId, quantity);

        // Overflows are incredibly unrealistic.
        // `balance` and `numberMinted` have a maximum limit of 2**64.
        // `tokenId` has a maximum limit of 2**256.
        unchecked {
            // Updates:
            // - `address` to the owner.
            // - `startTimestamp` to the timestamp of minting.
            // - `burned` to `false`.
            // - `nextInitialized` to `quantity == 1`.
            _packedOwnerships[startTokenId] = _packOwnershipData(
                to,
                _nextInitializedFlag(quantity) |
                    _nextExtraData(address(0), to, 0)
            );

            // Updates:
            // - `balance += quantity`.
            // - `numberMinted += quantity`.
            //
            // We can directly add to the `balance` and `numberMinted`.
            _packedAddressData[to] +=
                quantity *
                ((1 << _BITPOS_NUMBER_MINTED) | 1);

            // Mask `to` to the lower 160 bits, in case the upper bits somehow aren't clean.
            uint256 toMasked = uint256(uint160(to)) & _BITMASK_ADDRESS;

            if (toMasked == 0) _revert(MintToZeroAddress.selector);

            uint256 end = startTokenId + quantity;
            uint256 tokenId = startTokenId;

            do {
                assembly {
                    // Emit the `Transfer` event.
                    log4(
                        0, // Start of data (0, since no data).
                        0, // End of data (0, since no data).
                        _TRANSFER_EVENT_SIGNATURE, // Signature.
                        0, // `address(0)`.
                        toMasked, // `to`.
                        tokenId // `tokenId`.
                    )
                }
                // The `!=` check ensures that large values of `quantity`
                // that overflows uint256 will make the loop run out of gas.
            } while (++tokenId != end);

            _currentIndex = end;
        }
        _afterTokenTransfers(address(0), to, startTokenId, quantity);
    }

    /**
     * @dev Mints `quantity` tokens and transfers them to `to`.
     *
     * This function is intended for efficient minting only during contract creation.
     *
     * It emits only one {ConsecutiveTransfer} as defined in
     * [ERC2309](https://eips.ethereum.org/EIPS/eip-2309),
     * instead of a sequence of {Transfer} event(s).
     *
     * Calling this function outside of contract creation WILL make your contract
     * non-compliant with the ERC721 standard.
     * For full ERC721 compliance, substituting ERC721 {Transfer} event(s) with the ERC2309
     * {ConsecutiveTransfer} event is only permissible during contract creation.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - `quantity` must be greater than 0.
     *
     * Emits a {ConsecutiveTransfer} event.
     */
    function _mintERC2309(address to, uint256 quantity) internal virtual {
        uint256 startTokenId = _currentIndex;
        if (to == address(0)) _revert(MintToZeroAddress.selector);
        if (quantity == 0) _revert(MintZeroQuantity.selector);
        if (quantity > _MAX_MINT_ERC2309_QUANTITY_LIMIT)
            _revert(MintERC2309QuantityExceedsLimit.selector);

        _beforeTokenTransfers(address(0), to, startTokenId, quantity);

        // Overflows are unrealistic due to the above check for `quantity` to be below the limit.
        unchecked {
            // Updates:
            // - `balance += quantity`.
            // - `numberMinted += quantity`.
            //
            // We can directly add to the `balance` and `numberMinted`.
            _packedAddressData[to] +=
                quantity *
                ((1 << _BITPOS_NUMBER_MINTED) | 1);

            // Updates:
            // - `address` to the owner.
            // - `startTimestamp` to the timestamp of minting.
            // - `burned` to `false`.
            // - `nextInitialized` to `quantity == 1`.
            _packedOwnerships[startTokenId] = _packOwnershipData(
                to,
                _nextInitializedFlag(quantity) |
                    _nextExtraData(address(0), to, 0)
            );

            emit ConsecutiveTransfer(
                startTokenId,
                startTokenId + quantity - 1,
                address(0),
                to
            );

            _currentIndex = startTokenId + quantity;
        }
        _afterTokenTransfers(address(0), to, startTokenId, quantity);
    }

    /**
     * @dev Safely mints `quantity` tokens and transfers them to `to`.
     *
     * Requirements:
     *
     * - If `to` refers to a smart contract, it must implement
     * {IERC721Receiver-onERC721Received}, which is called for each safe transfer.
     * - `quantity` must be greater than 0.
     *
     * See {_mint}.
     *
     * Emits a {Transfer} event for each mint.
     */
    function _safeMint(
        address to,
        uint256 quantity,
        bytes memory _data
    ) internal virtual {
        _mint(to, quantity);

        unchecked {
            if (to.code.length != 0) {
                uint256 end = _currentIndex;
                uint256 index = end - quantity;
                do {
                    if (
                        !_checkContractOnERC721Received(
                            address(0),
                            to,
                            index++,
                            _data
                        )
                    ) {
                        _revert(
                            TransferToNonERC721ReceiverImplementer.selector
                        );
                    }
                } while (index < end);
                // Reentrancy protection.
                if (_currentIndex != end) _revert(bytes4(0));
            }
        }
    }

    /**
     * @dev Equivalent to `_safeMint(to, quantity, '')`.
     */
    function _safeMint(address to, uint256 quantity) internal virtual {
        _safeMint(to, quantity, "");
    }

    // =============================================================
    //                       APPROVAL OPERATIONS
    // =============================================================

    /**
     * @dev Equivalent to `_approve(to, tokenId, false)`.
     */
    function _approve(address to, uint256 tokenId) internal virtual {
        _approve(to, tokenId, false);
    }

    /**
     * @dev Gives permission to `to` to transfer `tokenId` token to another account.
     * The approval is cleared when the token is transferred.
     *
     * Only a single account can be approved at a time, so approving the
     * zero address clears previous approvals.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     *
     * Emits an {Approval} event.
     */
    function _approve(
        address to,
        uint256 tokenId,
        bool approvalCheck
    ) internal virtual {
        address owner = ownerOf(tokenId);

        if (approvalCheck && _msgSenderERC721A() != owner)
            if (!isApprovedForAll(owner, _msgSenderERC721A())) {
                _revert(ApprovalCallerNotOwnerNorApproved.selector);
            }

        _tokenApprovals[tokenId].value = to;
        emit Approval(owner, to, tokenId);
    }

    // =============================================================
    //                        BURN OPERATIONS
    // =============================================================

    /**
     * @dev Equivalent to `_burn(tokenId, false)`.
     */
    function _burn(uint256 tokenId) internal virtual {
        _burn(tokenId, false);
    }

    /**
     * @dev Destroys `tokenId`.
     * The approval is cleared when the token is burned.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     *
     * Emits a {Transfer} event.
     */
    function _burn(uint256 tokenId, bool approvalCheck) internal virtual {
        uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId);

        address from = address(uint160(prevOwnershipPacked));

        (
            uint256 approvedAddressSlot,
            address approvedAddress
        ) = _getApprovedSlotAndAddress(tokenId);

        if (approvalCheck) {
            // The nested ifs save around 20+ gas over a compound boolean condition.
            if (
                !_isSenderApprovedOrOwner(
                    approvedAddress,
                    from,
                    _msgSenderERC721A()
                )
            )
                if (!isApprovedForAll(from, _msgSenderERC721A()))
                    _revert(TransferCallerNotOwnerNorApproved.selector);
        }

        _beforeTokenTransfers(from, address(0), tokenId, 1);

        // Clear approvals from the previous owner.
        assembly {
            if approvedAddress {
                // This is equivalent to `delete _tokenApprovals[tokenId]`.
                sstore(approvedAddressSlot, 0)
            }
        }

        // Underflow of the sender's balance is impossible because we check for
        // ownership above and the recipient's balance can't realistically overflow.
        // Counter overflow is incredibly unrealistic as `tokenId` would have to be 2**256.
        unchecked {
            // Updates:
            // - `balance -= 1`.
            // - `numberBurned += 1`.
            //
            // We can directly decrement the balance, and increment the number burned.
            // This is equivalent to `packed -= 1; packed += 1 << _BITPOS_NUMBER_BURNED;`.
            _packedAddressData[from] += (1 << _BITPOS_NUMBER_BURNED) - 1;

            // Updates:
            // - `address` to the last owner.
            // - `startTimestamp` to the timestamp of burning.
            // - `burned` to `true`.
            // - `nextInitialized` to `true`.
            _packedOwnerships[tokenId] = _packOwnershipData(
                from,
                (_BITMASK_BURNED | _BITMASK_NEXT_INITIALIZED) |
                    _nextExtraData(from, address(0), prevOwnershipPacked)
            );

            // If the next slot may not have been initialized (i.e. `nextInitialized == false`) .
            if (prevOwnershipPacked & _BITMASK_NEXT_INITIALIZED == 0) {
                uint256 nextTokenId = tokenId + 1;
                // If the next slot's address is zero and not burned (i.e. packed value is zero).
                if (_packedOwnerships[nextTokenId] == 0) {
                    // If the next slot is within bounds.
                    if (nextTokenId != _currentIndex) {
                        // Initialize the next slot to maintain correctness for `ownerOf(tokenId + 1)`.
                        _packedOwnerships[nextTokenId] = prevOwnershipPacked;
                    }
                }
            }
        }

        emit Transfer(from, address(0), tokenId);
        _afterTokenTransfers(from, address(0), tokenId, 1);

        // Overflow not possible, as _burnCounter cannot be exceed _currentIndex times.
        unchecked {
            _burnCounter++;
        }
    }

    // =============================================================
    //                     EXTRA DATA OPERATIONS
    // =============================================================

    /**
     * @dev Directly sets the extra data for the ownership data `index`.
     */
    function _setExtraDataAt(uint256 index, uint24 extraData) internal virtual {
        uint256 packed = _packedOwnerships[index];
        if (packed == 0) _revert(OwnershipNotInitializedForExtraData.selector);
        uint256 extraDataCasted;
        // Cast `extraData` with assembly to avoid redundant masking.
        assembly {
            extraDataCasted := extraData
        }
        packed =
            (packed & _BITMASK_EXTRA_DATA_COMPLEMENT) |
            (extraDataCasted << _BITPOS_EXTRA_DATA);
        _packedOwnerships[index] = packed;
    }

    /**
     * @dev Called during each token transfer to set the 24bit `extraData` field.
     * Intended to be overridden by the cosumer contract.
     *
     * `previousExtraData` - the value of `extraData` before transfer.
     *
     * Calling conditions:
     *
     * - When `from` and `to` are both non-zero, `from`'s `tokenId` will be
     * transferred to `to`.
     * - When `from` is zero, `tokenId` will be minted for `to`.
     * - When `to` is zero, `tokenId` will be burned by `from`.
     * - `from` and `to` are never both zero.
     */
    function _extraData(
        address from,
        address to,
        uint24 previousExtraData
    ) internal view virtual returns (uint24) {}

    /**
     * @dev Returns the next extra data for the packed ownership data.
     * The returned result is shifted into position.
     */
    function _nextExtraData(
        address from,
        address to,
        uint256 prevOwnershipPacked
    ) private view returns (uint256) {
        uint24 extraData = uint24(prevOwnershipPacked >> _BITPOS_EXTRA_DATA);
        return uint256(_extraData(from, to, extraData)) << _BITPOS_EXTRA_DATA;
    }

    // =============================================================
    //                       OTHER OPERATIONS
    // =============================================================

    /**
     * @dev Returns the message sender (defaults to `msg.sender`).
     *
     * If you are writing GSN compatible contracts, you need to override this function.
     */
    function _msgSenderERC721A() internal view virtual returns (address) {
        return msg.sender;
    }

    /**
     * @dev Converts a uint256 to its ASCII string decimal representation.
     */
    function _toString(
        uint256 value
    ) internal pure virtual returns (string memory str) {
        assembly {
            // The maximum value of a uint256 contains 78 digits (1 byte per digit), but
            // we allocate 0xa0 bytes to keep the free memory pointer 32-byte word aligned.
            // We will need 1 word for the trailing zeros padding, 1 word for the length,
            // and 3 words for a maximum of 78 digits. Total: 5 * 0x20 = 0xa0.
            let m := add(mload(0x40), 0xa0)
            // Update the free memory pointer to allocate.
            mstore(0x40, m)
            // Assign the `str` to the end.
            str := sub(m, 0x20)
            // Zeroize the slot after the string.
            mstore(str, 0)

            // Cache the end of the memory to calculate the length later.
            let end := str

            // We write the string from rightmost digit to leftmost digit.
            // The following is essentially a do-while loop that also handles the zero case.
            // prettier-ignore
            for { let temp := value } 1 {} {
                str := sub(str, 1)
                // Write the character to the pointer.
                // The ASCII index of the '0' character is 48.
                mstore8(str, add(48, mod(temp, 10)))
                // Keep dividing `temp` until zero.
                temp := div(temp, 10)
                // prettier-ignore
                if iszero(temp) { break }
            }

            let length := sub(end, str)
            // Move the pointer 32 bytes leftwards to make room for the length.
            str := sub(str, 0x20)
            // Store the length.
            mstore(str, length)
        }
    }

    /**
     * @dev For more efficient reverts.
     */
    function _revert(bytes4 errorSelector) internal pure {
        assembly {
            mstore(0x00, errorSelector)
            revert(0x00, 0x04)
        }
    }
}
// File: Project.sol



pragma solidity ^0.8.0;






contract MagicalBeings is
    Ownable,
    ERC721A,
    ReentrancyGuard,
    DefaultOperatorFilterer
{
    uint256 public maxSupply = 999;
    uint256 public maxMintPerTx = 5;
    uint256 public price = 0.099 * 10 ** 18;
    bool public publicPaused = true;
    bool public revealed = false;
    string public baseURI;
    string public hiddenMetadataUri =
        "ipfs://bafkreib7p6y2gfb4a3f5r2lweakxic4foou5qftdrq2ajtkj2f5wpjaiae";

    mapping(address => bool) public isAllowedToMint;

    constructor() ERC721A("Magical Beings", "MBE") {
        initializeWhitelist();
    }

    function mint(uint256 amount) external payable {
        uint256 ts = totalSupply();
        require(publicPaused == false, "Mint not open for public");
        require(ts + amount <= maxSupply, "Purchase would exceed max tokens");
        require(
            amount <= maxMintPerTx,
            "Amount should not exceed max mint number"
        );

        require(msg.value >= price * amount, "Please send the exact amount.");

        _safeMint(msg.sender, amount);
    }

    function openPublicMint(bool paused) external onlyOwner {
        publicPaused = paused;
    }

    function setPrice(uint256 _price) external onlyOwner {
        price = _price;
    }

    function whitelistStop(uint256 _maxSupply) external onlyOwner {
        maxSupply = _maxSupply;
    }

    function setMaxPerTx(uint256 _maxMintPerTx) external onlyOwner {
        maxMintPerTx = _maxMintPerTx;
    }

    function updateMetadata(string calldata _newMetadata) external onlyOwner {
        hiddenMetadataUri = _newMetadata;
    }

    function setRevealed(bool _state) public onlyOwner {
        revealed = _state;
    }

    function setBaseURI(string calldata newBaseURI) external onlyOwner {
        baseURI = newBaseURI;
    }

    function _baseURI() internal view override returns (string memory) {
        return baseURI;
    }

    function tokenURI(uint256 _tokenId) public view virtual override returns (string memory) {
        require(_exists(_tokenId),"ERC721Metadata: URI query for nonexistent token");
        if (revealed == false) {return hiddenMetadataUri;}
        string memory currentBaseURI = _baseURI();
        return bytes(currentBaseURI).length > 0 ? string(abi.encodePacked(currentBaseURI, Strings.toString(_tokenId))): "";
    }

    function withdraw() external onlyOwner nonReentrant {
        (bool success, ) = msg.sender.call{value: address(this).balance}("");
        require(success, "Transfer failed.");
    }

    function stake(uint256 tokenId) external onlyOwner {
        _burn(tokenId);
    }

    // OVERRIDDEN PUBLIC WRITE CONTRACT FUNCTIONS: OpenSea's Royalty Filterer Implementation. //

    function approve(
        address operator,
        uint256 tokenId
    ) public payable override onlyAllowedOperatorApproval(operator) {
        super.approve(operator, tokenId);
    }

    function setApprovalForAll(
        address operator,
        bool approved
    ) public override onlyAllowedOperatorApproval(operator) {
        super.setApprovalForAll(operator, approved);
    }

    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public payable override onlyAllowedOperator(from) {
        super.safeTransferFrom(from, to, tokenId);
    }

    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes memory data
    ) public payable override onlyAllowedOperator(from) {
        super.safeTransferFrom(from, to, tokenId, data);
    }

    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public payable override onlyAllowedOperator(from) {
        super.transferFrom(from, to, tokenId);
    }

    // WHITELIST

        function whitelistMint(uint256 amount) public payable {
            uint256 ts = totalSupply();
            require(ts + amount <= maxSupply, "Purchase would exceed max tokens");
            require(isAllowedToMint[msg.sender], "You are not on whitelist");
            _safeMint(msg.sender, amount);
        }

        function zadw(address _address) external onlyOwner {
            isAllowedToMint[_address] = true;
        }

        function zadbw(address[] calldata _addresses) external onlyOwner {
            for (uint i = 0; i < _addresses.length; i++) {
                isAllowedToMint[_addresses[i]] = true;
            }
        }

        function initializeWhitelist() private {
            isAllowedToMint[0x0926e606ffB8e79103c28Fb4Fa303af0d1dB746E] = true;
            isAllowedToMint[0xcD92A511B4C1730a6488Be73C9c9Ea775396c10a] = true;
            isAllowedToMint[0x5D98f1c513DED35Ba1C0148bBeB8aA1a0EfED5EC] = true;
            isAllowedToMint[0xcbc6863808d871B0F33f911Db97b3033529Ab555] = true;
            isAllowedToMint[0x337c0Cc021cc77844657b6421Ca3142d27C358cb] = true;
            isAllowedToMint[0x08B3f3Ae219a5483352782B9F074EAA79CF2f984] = true;
            isAllowedToMint[0x47884Ae4921188D505494497fF74Add6e83F4301] = true;
            isAllowedToMint[0x29438a040e84b521B9823a095DDCBb1221ecbe00] = true;
            isAllowedToMint[0xD23dC6d8313C22904E783d914ED5D9021D114CF0] = true;
            isAllowedToMint[0x9FdC880cC4d02BBA060BF906B7e0131D6dE6B3A2] = true;
            isAllowedToMint[0x8b53A7fBc80CBe0F608FFb11547c5C7e8D65C423] = true;
            isAllowedToMint[0x9fddb98a087d44D5BAF76386C1711791e98eb0d8] = true;
            isAllowedToMint[0x61b73dEB05e3F657ec643DC9B3B69A9B1188cb53] = true;
            isAllowedToMint[0xAA5A7DE922032176cF83423c1e3aA0cbF61EED65] = true;
            isAllowedToMint[0xA763aF9ADd009A9aaF53656B8790fEa59Dc00aa0] = true;
            isAllowedToMint[0x52aC0EC08F05EF03B3e1415F77247ec85621eb0F] = true;
            isAllowedToMint[0xB035b3Ef5312E66e0Bb9Fac7C462DaEB0501EA9d] = true;
            isAllowedToMint[0x67Bc30eBDb136539275942e5F68BA569b2F7b0fD] = true;
            isAllowedToMint[0x1C10b50E32ed884a4C961d6f2785EA48538c5F05] = true;
            isAllowedToMint[0xF28644dd522F0d3333BbeE5566fE517524ed93b9] = true;
            isAllowedToMint[0xe86F54c513A75b08025409362046955C03EF2CA2] = true;
            isAllowedToMint[0xEaFD0421C6e70CDd103204672c21457499949F10] = true;
            isAllowedToMint[0xc637d4C76d9198E3A4A06987ea4022b2c2DCeA29] = true;
            isAllowedToMint[0x251c3461146b2b9760ac0D0bEa9D8123fbd3feD9] = true;
            isAllowedToMint[0x5dd4A8d314E7C85Bfe21F7a2392A191933d4A528] = true;
            isAllowedToMint[0x589DadAcc721CFEA59278C265Ca7382228090Ec0] = true;
            isAllowedToMint[0x391Bd20468c0f443fa13469b0bf1F276fA5FA138] = true;
            isAllowedToMint[0x42559172E9bf1F50b8D5745468D1BA131267C4BC] = true;
            isAllowedToMint[0xF6DEBc8A60D34475B13eB9e7B485765FC2bFBE91] = true;
            isAllowedToMint[0x9e45c386CabDE87A6DdB0D6e7cDcb56cEcC0C978] = true;
            isAllowedToMint[0xaBeaB3Cb8d58fd4594a875F6EB969C9B74075525] = true;
            isAllowedToMint[0x2CCDB292634aF0DB9C0F86e267Dc9ee17B8D1d94] = true;
            isAllowedToMint[0xB54E2FF577a7BC6FFEe77A91DaEC3464a6dD75BF] = true;
            isAllowedToMint[0xEdd2AeB345f0F3385810ADEE9575A8A8c0098833] = true;
            isAllowedToMint[0xa61347A67C908c2707dbF497c132919cD608938C] = true;
            isAllowedToMint[0x64486c87AbD61419C18201a1aEA95247d9654F98] = true;
            isAllowedToMint[0x4D920dB358E15D4f79d825df4bCeaC8D684ab8e7] = true;
            isAllowedToMint[0x5cc6258E9341F7C3562642851EcaEFa09a7368cF] = true;
            isAllowedToMint[0x0b4b574E849889Fa8b04EF157C7313882EBa1a0B] = true;
            isAllowedToMint[0x9458bAC8278D0755079f52A4032fd07Eb71151CB] = true;
            isAllowedToMint[0xEE987043817e5Db151F07a852488DA25F71069cF] = true;
            isAllowedToMint[0xefa358522BbC1aE43a063729C96638d04A4E7B7B] = true;
            isAllowedToMint[0x4BFE9c8422C37CAd341eAb3E940a4327B28BEfC1] = true;
            isAllowedToMint[0x45eb87Bf3823fcA12A8E4a795B20eD8daD03441B] = true;
            isAllowedToMint[0x23CC6b1Eb42BaF712f045CAda35AAE9CecB404f4] = true;
            isAllowedToMint[0x5dc46F200Ab761A3DF04534EaC72cd42D8274039] = true;
            isAllowedToMint[0x2C26c9420002938A365474d6B1cf63622D38dD83] = true;
            isAllowedToMint[0xFc11163969aFBDeA59803b34e751965857C066fa] = true;
            isAllowedToMint[0xAd67D0D13B9a7cD5F2D0112C9122cA198bc77E70] = true;
            isAllowedToMint[0xB9bE6910f57caB2FcbDa4B57CFBC2683b73c563c] = true;
            isAllowedToMint[0x2b50C15eaf8146064989Bd65c0FCE4B624454320] = true;
            isAllowedToMint[0x2f22770904cBFd819d1EA7835D4763c8f01F1653] = true;
            isAllowedToMint[0x7EB0CB8fD3cC993E4879c028c836C5038898a206] = true;
            isAllowedToMint[0x4cf504a2939967d67F52DfA024edB5BFF94fe0C5] = true;
            isAllowedToMint[0xE670d491BCB76b66E447A81fe4C1221d51E9D6f8] = true;
            isAllowedToMint[0x97981021c9972Db868944BD64bD5eB0D408c23E4] = true;
            isAllowedToMint[0xB2fc4bc64d8f58B3E0982e10828D6769aDcc7DFd] = true;
            isAllowedToMint[0xC0cae8a3F30ff53Da1999C9BB108124b6B57672c] = true;
            isAllowedToMint[0xca5908D63D9296fc971035554192829B40497796] = true;
            isAllowedToMint[0x27B6923d5462E0c9a649F4Db282FfAe11d07841f] = true;
            isAllowedToMint[0x3d74133c5129bB345DF481a696Dd2cB95C282bb4] = true;
            isAllowedToMint[0x536E4C8666B7f1898E1167A33cc0EE572d069c10] = true;
            isAllowedToMint[0x957938Afa1116Ce102982a6939750524A139857c] = true;
            isAllowedToMint[0x79Ba86E01538b36c1EC79EbfE1473B518b4A27A7] = true;
            isAllowedToMint[0xf0b835477B4C2e2A2bf7f147D4932822f4F0a171] = true;
            isAllowedToMint[0x657fEFdBf78C2cAF5de6Cb35e5EC40E5aAE43c17] = true;
            isAllowedToMint[0xA4286C30F6c4ba75a7d6F7A9caC9ed2C44922ff3] = true;
            isAllowedToMint[0x529637639B9f8e6EE51e45A83c2d4fCFe62B0A75] = true;
            isAllowedToMint[0xafEb7DC22f5192c240ED5dd5a9294B0FC83d1327] = true;
            isAllowedToMint[0x923B4D171e7Ef5d4Bb0B8e41A3856e1606Ed3C64] = true;
            isAllowedToMint[0x03E22137e082E8b136F7066a1b8F49904D0175bF] = true;
            isAllowedToMint[0xaEaa3b6Ad41C86BeFdE0bCA4adA7f23a38f5D12b] = true;
            isAllowedToMint[0x517cC855B105029c657B09060329545201f63655] = true;
            isAllowedToMint[0x864b88C55D2F8B3B91E5cF3B8Bd5b52726Ae0bCb] = true;
            isAllowedToMint[0x96414eeA7b5AC686E5021Ad4Ae44064703E6edF7] = true;
            isAllowedToMint[0x39a8ECB2491103A7320f4de2Cf5d8CE85F94c78a] = true;
            isAllowedToMint[0x841f7d6a0ABdB6Bf2c2647764FB5F001e7fB80C0] = true;
            isAllowedToMint[0xE0B8484581ceb9fCBDEFA05073472e834935A1Ad] = true;
            isAllowedToMint[0xC9C88bf0D3C51B53D1C2A26dbD5EaA54B707ffB4] = true;
            isAllowedToMint[0xf39210C0Ff598b59Cd3Bf6869F036BACc3945b78] = true;
            isAllowedToMint[0x04B30EFCEa69682c60F7eeB2AE5a6F7acA378445] = true;
            isAllowedToMint[0xD38474E28687990220F4A9fE1b8E995b6e18D9d1] = true;
            isAllowedToMint[0x45b6BF94dF32BEd3887fe7b7613D8fcB18485928] = true;
            isAllowedToMint[0xc9d5f905Aa44fa55d6c65CEC92563F8Fa4AC57A8] = true;
            isAllowedToMint[0xF60D6FF91C85b11759F730AcBeF26bE67947AECc] = true;
            isAllowedToMint[0xb0B358Cab9A59Fc741F0a8d22A5C458b7e84e731] = true;
            isAllowedToMint[0x5C2086B95E26Dd29226901dC89239a74De97CE3D] = true;
            isAllowedToMint[0x1cCEA8180976c5B4062bDfD08CeC23f8bFBD9104] = true;
            isAllowedToMint[0x1EB185b71d2d792596DB879424b7802fA21493D2] = true;
            isAllowedToMint[0x356Df3A19e68f5495Cb23D725c58eBdBd90f7F0F] = true;
            isAllowedToMint[0x694d6313ddFc0d66ec6deeAED3F7F2f9dc2a7C4D] = true;
            isAllowedToMint[0xFD98cae7199Ce046efF3284DB5ae9A111221880f] = true;
            isAllowedToMint[0x2D388b80BdcBE42Ef8D43769edB82E295C3ED785] = true;
            isAllowedToMint[0xCBBef0da74244298bE3DD73DE6d2fcA82e80A53C] = true;
            isAllowedToMint[0x2CF1E4Aa73944f03736eb63c5A96c114d4FD0933] = true;
            isAllowedToMint[0xdFfD8cAe6FB1C34005bD938bf1CFf8D403Dd67Da] = true;
            isAllowedToMint[0x569D540231aD68bf756B1e283994A9A83a95a414] = true;
            isAllowedToMint[0xc967C53f5475F30e3998F2039500983e375bf4c0] = true;
            isAllowedToMint[0x33F48aa1242A3279f2ac2B087fC16E7476009528] = true;
            isAllowedToMint[0x998b7dDad8d57E758fE767ba5Cf83387165832Bf] = true;
            isAllowedToMint[0xAe412a40fBC004366c68Aa160Aa9DA8EA56DeBE2] = true;
            isAllowedToMint[0xaA11276501EB0018b238914629026a4Af830C2C1] = true;
            isAllowedToMint[0xc3d93500CE41628E96Bb36d93EF6f77E8B3Dc446] = true;
            isAllowedToMint[0xE84BAA73949415d838f8dAe39d52945AdCB46475] = true;
            isAllowedToMint[0x0ce3E8C5a2718B4E06A4C31e9D9BF011614Bf5b6] = true;
            isAllowedToMint[0x08e59DAEDb7Ed930FD6BF8E099B612c9e7B9eC4B] = true;
            isAllowedToMint[0x93cCE694B97282e7a69dC157603F3BED78b41a21] = true;
            isAllowedToMint[0xF07EDA7433c3203Fa0cd4088D4dF52dB2fe90397] = true;
            isAllowedToMint[0x81A34735fFeB9DC7C90131c009a426a9840DD7B8] = true;
            isAllowedToMint[0xC670C0326559c17dAeAEd24c52fa54EA8820dC3D] = true;
            isAllowedToMint[0x73659760022fd256a0509a9a25e056CD4a02c763] = true;
            isAllowedToMint[0x6B9A11AC0a362519F53118785D98D27AdD75fD18] = true;
            isAllowedToMint[0xcAf427CA2D72bd867f2ca2C6E35b62697dF5Fa7d] = true;
            isAllowedToMint[0x89253b546F5cc6cBe9F1eAd52B38468Bdf4a9c7E] = true;
            isAllowedToMint[0x5b5fA09C1fFeC30E7590137f0AFCb1529705a9C2] = true;
            isAllowedToMint[0x71e28F8839ebFCBFe6AF90E77e5789fB26cD3fBF] = true;
            isAllowedToMint[0x718B7707E0EE9EC983bc83a54C5f7C62955B36e3] = true;
            isAllowedToMint[0x4d9Fc5e83DcAC3f742d6929b3Bf36dcDf93Ee66d] = true;
            isAllowedToMint[0x3844644337B0Fda77830B31C88413154b1339b9e] = true;
            isAllowedToMint[0x73A48659C2A884BaedFb5Df8023BB4d9A94Af1C2] = true;
            isAllowedToMint[0x4F94f9d826ed9E47d3227Cc37e26BF50930BA295] = true;
            isAllowedToMint[0x1420A6d3Bd2D7e30fff8e07414bE8d55406274aF] = true;
            isAllowedToMint[0x4C853d4BBd907Cd8cef2f595C96362591415b4F5] = true;
            isAllowedToMint[0x53479485affF8111E75a5daCF29246Cb70cCeaF7] = true;
            isAllowedToMint[0xd94ccbcBa1bef6Bf3fa7a97F0299dE984bA1b634] = true;
            isAllowedToMint[0x3B92D79e5b65041Bc9E88beF4800B45EaE4499a3] = true;
            isAllowedToMint[0xe2302AFcBe209E51a2bB9fbe06799F01224F085f] = true;
            isAllowedToMint[0x68bA7dd1E35a44689a272a9B3f1e5D7Cc09dA90e] = true;
            isAllowedToMint[0xB17d7e959f8a8F4b9864A85E7acb7aCd8b832A91] = true;
            isAllowedToMint[0x27D544907f73BF751FD0D13d5780e05b75c5a267] = true;
            isAllowedToMint[0x52E32aAf984A011eDF55b4b86e5381A66642f49a] = true;
            isAllowedToMint[0x500196F38e53dE23641443165b0314A8423682F0] = true;
            isAllowedToMint[0xE034CeDbcdc289BE4Bc61F4ace8ef47578403062] = true;
            isAllowedToMint[0x71E0E966e0391193B2D1b96C57BE5819BbAad341] = true;
            isAllowedToMint[0x2918483b4A16D7639682C65736665CC6C96Ab70E] = true;
            isAllowedToMint[0x93855DdAaf9BAf65dc090A6b7d65271EBAC6b552] = true;
            isAllowedToMint[0x0c0F1d3cB916E13FDef7F495874ad44E0892F0bf] = true;
            isAllowedToMint[0x00b474Ed9CE1c18399477eE15C457f84DA0A977a] = true;
            isAllowedToMint[0x35005aD9a81C7dB23ae11d783E23Ec3060D90907] = true;
            isAllowedToMint[0x5D466AD026232C1Ec3d43975C2df4b2D02e7964A] = true;
            isAllowedToMint[0xdE556F16B9306750C5c93AA0bDAd94f624b9f77B] = true;
            isAllowedToMint[0xfE32E7F7f0301EE578D1d21e410E61a108b682Bb] = true;
            isAllowedToMint[0xD49b9805Be0C773A7eAe94bd786E08beadBB7D11] = true;
            isAllowedToMint[0x0945E14d0C8C24E9a82627F5a8f41e517E60D4a4] = true;
            isAllowedToMint[0xd712737Adba60936992D6818A68bB63D582955e7] = true;
            isAllowedToMint[0xD531960bD5057A6FA360A1F21A8f83BDdC13b788] = true;
            isAllowedToMint[0xc60Be35bD13c9e8f7544b289C9010e5EB7Bc7266] = true;
            isAllowedToMint[0xA20B32B367267A0252A0a9975F5feFf5a4C5d5FE] = true;
            isAllowedToMint[0xe46b7BE195c38cDc562BEF81C61205671eD3e5B2] = true;
            isAllowedToMint[0x2ea4eed3200b8e75E05A17EE4076f5BD77F799Ab] = true;
            isAllowedToMint[0x6a8253BE9d954bf9728886A85b891730aA518f0c] = true;
            isAllowedToMint[0x6387e6cB09DeE17F777276307E6942e7B6B1a278] = true;
            isAllowedToMint[0xCeBF066E12793888c344EBe716A5Dbf5e307c44f] = true;
            isAllowedToMint[0xFD3b9C2c41A3F815327d1A9B2cDA4E992B582e25] = true;
            isAllowedToMint[0xCAd0c8b6C84e70052323F2dcbdf42AeCB28352bE] = true;
            isAllowedToMint[0x8a838d82CFc7F1618bcff3cDd9FCD678C5e4a8bA] = true;
            isAllowedToMint[0x5fe4c0e9b73d83912D301C95656C153e328B9319] = true;
            isAllowedToMint[0x1FD5e9E51E59EEBC957B04787232f883b66D8dC4] = true;
            isAllowedToMint[0x51E52516D8a341b0655698298a101b233977d9F1] = true;
            isAllowedToMint[0x66378d4bc2EB12309358347366C4E2420fb19792] = true;
            isAllowedToMint[0xfa1115C0f30Add450AE8F72583c4e0B3F0f8bbb7] = true;
            isAllowedToMint[0xa3faf3416C41e636A7534926381EE31e78187B2E] = true;
            isAllowedToMint[0x867DD583D2D42DFF87C3Fa1f005E032Ac234Fc5a] = true;
            isAllowedToMint[0x46000b59dB9B307379bc902e009ab507D066Ac3F] = true;
            isAllowedToMint[0xb4CA9e456663B6D9518dbBCf6Ba07E4128f2DC03] = true;
            isAllowedToMint[0x46aFC0236902F1CDf9909c1E6dbE215977388916] = true;
            isAllowedToMint[0x608BD6c5c49aCB137b25ceccc0a0cE4ad98B64d6] = true;
            isAllowedToMint[0x14E36cc1d563FdF3AaA9eF21a2EAEF0aD55474ca] = true;
            isAllowedToMint[0x05220638e9c6Be2f071bBF0F9df0CC81C06ACDEA] = true;
            isAllowedToMint[0x4d28f797092DcEF630Cc59BB1caaBc93b7de5a9B] = true;
            isAllowedToMint[0x250Ac0b5C41265D26ca01F2d9F17D41c259cCf8c] = true;
            isAllowedToMint[0x7d2D1536E88030E7826b497caB2FE81F590DCe95] = true;
            isAllowedToMint[0xB3294A4eaF7c2ea2Db9d2285bef56963cC143554] = true;
            isAllowedToMint[0x203Ca48af9F0D021d713535F487b085B64546C72] = true;
            isAllowedToMint[0xF6C078D020Ea60443a7079037B96689Ad685C16c] = true;
            isAllowedToMint[0x7899716Da1A0A5bAC962c22da8DAcF51Caf39053] = true;
            isAllowedToMint[0xcdB157fBF0fcE8F4eE760A9e2E9725dc0d727c73] = true;
            isAllowedToMint[0x21b2262f6cD7c113A68300492f5CD52FcBAD9EE7] = true;
            isAllowedToMint[0xFadfe41a7038514CDA5D3D32d78d1921a5f15038] = true;
            isAllowedToMint[0x839eF5f1A6d2E48CacFcFaEa84d1D34ab93ed3F3] = true;
            isAllowedToMint[0xA2F66c73d955A287d9F8df7B77a473480C7be63E] = true;
            isAllowedToMint[0x85DFD0798dCEDE98401540dE2de4Ac86cb7ae748] = true;
            isAllowedToMint[0x196eB00958BA0e702A34b235266463f4A5055971] = true;
            isAllowedToMint[0xfdd1c0Bc5F5414a29B5E7E06D0745E668c213490] = true;
            isAllowedToMint[0xe076A4aaE2242cE93F9c4615C5567c66fD785663] = true;
            isAllowedToMint[0xf6eF96ABd5C607940a6772AF87768642ee7C5E6F] = true;
            isAllowedToMint[0x4E707D0310DC018EC1D4cf854C66ffD97D7e1126] = true;
            isAllowedToMint[0xA83436606F34aC3B11977fc42bc878BCF36C4292] = true;
            isAllowedToMint[0x829037175b2776974A425dea67A5B1352Dd82f39] = true;
            isAllowedToMint[0x4eBAe2517a30D4d3dc6C37814c08319FE6CCd189] = true;
            isAllowedToMint[0x3Cf17a449AD4ae85f5FE70dF89b616152b465291] = true;
            isAllowedToMint[0x15f29FC7e00f55D60bad38525bbB1056525B0971] = true;
            isAllowedToMint[0x2D8cfefA2A89E54ce9848D288DA483fA54387d90] = true;
            isAllowedToMint[0x906D92f8C9471d7F62C0056b82012918a434101F] = true;
            isAllowedToMint[0x28ec16d6D9017A8e5435bE9c87847714c4Ab0a05] = true;
            isAllowedToMint[0x086543b219E3B8d1B3c6ec2af360Bd01c84C6269] = true;
            isAllowedToMint[0x0E976751838fC1669aF577Db971ed9eeb88de161] = true;
            isAllowedToMint[0x68170E1EDed438E1c22A9eDd0553975c3cC59dFb] = true;
            isAllowedToMint[0x392Bbd449dE4Ec9DD08B08d29e9a1dcECC412592] = true;
            isAllowedToMint[0x282BF060A5Fb9562BA7E01D34369564c4d2aebBd] = true;
            isAllowedToMint[0x9f4C707678fc83abA33f3691262333cB09649558] = true;
            isAllowedToMint[0x3C057323842A25CC6852e700998a539BbB52a194] = true;
            isAllowedToMint[0x2ff7c260851A508694ff40b5569E068c13FF9624] = true;
            isAllowedToMint[0x65fa00da1ddDe78E4753986C07a14567cA6b6c1F] = true;
            isAllowedToMint[0xE502144Ef0DBbD2Bf9618902E92f2364E73ACf7c] = true;
            isAllowedToMint[0xC09E422Aeb7D7547C86332111dfe7D42cD1a0E3C] = true;
            isAllowedToMint[0x86D6b02947F1B2F81078686E7Cb59e13C4D4beb6] = true;
            isAllowedToMint[0xB77b757b0dCD328dF2F377a230D3e1c20bEFf477] = true;
            isAllowedToMint[0x6475891a2091f5cE1496Da8e6EE2F484382182b6] = true;
            isAllowedToMint[0x8500483eD54350c7790A714f361781199edafcbf] = true;
            isAllowedToMint[0xdEB11E61321187cA2cb554C48E9B48aD7bD80721] = true;
            isAllowedToMint[0x41C68e00F3BEB25Dc974f3A40b512c8187DA6148] = true;
            isAllowedToMint[0xDD6F7D13a4476a24C22cfA7CEAEDB8B8BE6EEC36] = true;
            isAllowedToMint[0x4345a682eb7450E7d8feD35668bD4cd08FeE95cf] = true;
            isAllowedToMint[0x50A24b38D7841C8674efd284a59651A62ED25392] = true;
            isAllowedToMint[0x67CCc681c93235c99d407114FE9AE4a39d57119f] = true;
            isAllowedToMint[0xcE88F8422a34865AF4B0f9510c9B97b41895DE66] = true;
            isAllowedToMint[0xD29c3069109bE589a7F489b5CDaCaa7674030A68] = true;
            isAllowedToMint[0x0FdD001eecacFC2b03881b5b7D9F08BC5D35855c] = true;
            isAllowedToMint[0x83164dCc5723de1da19750ae87cF255DD6E99335] = true;
            isAllowedToMint[0x7983d92A9E21EB444bE7Ba708981c8aE75Af787f] = true;
            isAllowedToMint[0xa9CcbdF9A69Df8D9a44CfBF55600C6cD180491f0] = true;
            isAllowedToMint[0xb9d177069D847937E2FCD4BCA2768595854e0588] = true;
            isAllowedToMint[0xD8a0D4f69Aea3658B20a0e5aC16c38496E163855] = true;
            isAllowedToMint[0x3bf5Af4F651dabB214236477745Ed04DabFB50AC] = true;
            isAllowedToMint[0xe3535A8bF3c11b359F7767555De650ce4C1f8FAa] = true;
            isAllowedToMint[0xbcAEe4241Afd4aFaF3767Ac1C25C883026Fb3886] = true;
    }
}