// SPDX-License-Identifier: MIT

/*
FKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFK
FKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFK
FKFKFKFKFKFKFK               FKFKFKFKFKFKFKFKFKFKFK     FKFKFKFKFK     FKFKFKFKFKFKFKFKFKFKFKFKF
FKFKFKFKFKFKFK               FKFKFKFKFKFKFKFKFKFKFK     FKFKFKFK    FKFKFKFKFKFKFKFKFKFKFKFKFKFK
FKFKFKFKFKFKFK     FKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFK     FKFKFK    FKFKFKFKFKFKFKFKFKFKFKFKFKFKFK
FKFKFKFKFKFKFK     FKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFK     FKFK    FKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFK
FKFKFKFKFKFKFK             FKFKFKFKFKFKFKFKFKFKFKFK     FK    FKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFK
FKFKFKFKFKFKFK             FKFKFKFKFKFKFKFKFKFKFKFK         FKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFK
FKFKFKFKFKFKFK     FKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFK     FK    FKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFK
FKFKFKFKFKFKFK     FKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFK     FKFK    FKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFK
FKFKFKFKFKFKFK     FKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFK     FKFKFK    FKFKFKFKFKFKFKFKFKFKFKFKFKFKFK
FKFKFKFKFKFKFK     FKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFK     FKFKFKFK     FKFKFKFKFKFKFKFKFKFKFKFKFKF
FKFKFKFKFKFKFK     FKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFK     FKFKFKFKFK      FKFKFKFKFKFKFKFKFKFKFKFK
FKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFK
FKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFK
*/

pragma solidity ^0.8.0;

library Counters {
    struct Counter {

        uint256 _value; // default: 0
    }

    function current(Counter storage counter) internal view returns (uint256) {
        return counter._value;
    }

    function increment(Counter storage counter) internal {
        unchecked {
            counter._value += 1;
        }
    }

    function decrement(Counter storage counter) internal {
        uint256 value = counter._value;
        require(value > 0, "Counter: decrement overflow");
        unchecked {
            counter._value = value - 1;
        }
    }

    function reset(Counter storage counter) internal {
        counter._value = 0;
    }
}

pragma solidity ^0.8.0;

library Strings {
    bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";

    function toString(uint256 value) internal pure returns (string memory) {

        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);
    }

    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);
    }

    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] = _HEX_SYMBOLS[value & 0xf];
            value >>= 4;
        }
        require(value == 0, "Strings: hex length insufficient");
        return string(buffer);
    }
}

pragma solidity ^0.8.0;

abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}

pragma solidity ^0.8.0;

abstract contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    constructor() {
        _transferOwnership(_msgSender());
    }

    function owner() public view virtual returns (address) {
        return _owner;
    }

    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _transferOwnership(newOwner);
    }

    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

pragma solidity ^0.8.1;

library Address {

    function isContract(address account) internal view returns (bool) {

        return account.code.length > 0;
    }

    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCall(target, data, "Address: low-level call failed");
    }

    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        require(isContract(target), "Address: call to non-contract");

        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        require(isContract(target), "Address: static call to non-contract");

        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(isContract(target), "Address: delegate call to non-contract");

        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            
            if (returndata.length > 0) {
                

                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

pragma solidity ^0.8.0;

interface IERC721Receiver {
   
    function onERC721Received(
        address operator,
        address from,
        uint256 tokenId,
        bytes calldata data
    ) external returns (bytes4);
}

pragma solidity ^0.8.0;

interface IERC165 {

    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

pragma solidity ^0.8.0;

abstract contract ERC165 is IERC165 {
    
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IERC165).interfaceId;
    }
}

pragma solidity ^0.8.0;

interface IERC721 is IERC165 {
  
    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);

    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);

    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);

    function balanceOf(address owner) external view returns (uint256 balance);

    function ownerOf(uint256 tokenId) external view returns (address owner);

    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes calldata data
    ) external;

    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

    function approve(address to, uint256 tokenId) external;

    function setApprovalForAll(address operator, bool _approved) external;

    function getApproved(uint256 tokenId) external view returns (address operator);

    function isApprovedForAll(address owner, address operator) external view returns (bool);
}

pragma solidity ^0.8.0;

interface IERC721Metadata is IERC721 {

    function name() external view returns (string memory);

    function symbol() external view returns (string memory);

    function tokenURI(uint256 tokenId) external view returns (string memory);
}

pragma solidity ^0.8.0;

contract ERC721 is Context, ERC165, IERC721, IERC721Metadata {
    using Address for address;
    using Strings for uint256;

    string private _name;

    string private _symbol;

    mapping(uint256 => address) private _owners;

    mapping(address => uint256) private _balances;

    mapping(uint256 => address) private _tokenApprovals;

    mapping(address => mapping(address => bool)) private _operatorApprovals;


    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }

    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
        return
            interfaceId == type(IERC721).interfaceId ||
            interfaceId == type(IERC721Metadata).interfaceId ||
            super.supportsInterface(interfaceId);
    }

    function balanceOf(address owner) public view virtual override returns (uint256) {
        require(owner != address(0), "ERC721: balance query for the zero address");
        return _balances[owner];
    }

    function ownerOf(uint256 tokenId) public view virtual override returns (address) {
        address owner = _owners[tokenId];
        require(owner != address(0), "ERC721: owner query for nonexistent token");
        return owner;
    }

    function name() public view virtual override returns (string memory) {
        return _name;
    }

    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }

    function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
        require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token");

        string memory baseURI = _baseURI();
        return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : "";
    }

    function _baseURI() internal view virtual returns (string memory) {
        return "";
    }

    function approve(address to, uint256 tokenId) public virtual override {
        address owner = ERC721.ownerOf(tokenId);
        require(to != owner, "ERC721: approval to current owner");

        require(
            _msgSender() == owner || isApprovedForAll(owner, _msgSender()),
            "ERC721: approve caller is not owner nor approved for all"
        );

        _approve(to, tokenId);
    }

    function getApproved(uint256 tokenId) public view virtual override returns (address) {
        require(_exists(tokenId), "ERC721: approved query for nonexistent token");

        return _tokenApprovals[tokenId];
    }

    function setApprovalForAll(address operator, bool approved) public virtual override {
        _setApprovalForAll(_msgSender(), operator, approved);
    }

    function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
        return _operatorApprovals[owner][operator];
    }

    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public virtual override {
        
        require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");

        _transfer(from, to, tokenId);
    }

    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public virtual override {
        safeTransferFrom(from, to, tokenId, "");
    }

    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) public virtual override {
        require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");
        _safeTransfer(from, to, tokenId, _data);
    }

    function _safeTransfer(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) internal virtual {
        _transfer(from, to, tokenId);
        require(_checkOnERC721Received(from, to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer");
    }

    function _exists(uint256 tokenId) internal view virtual returns (bool) {
        return _owners[tokenId] != address(0);
    }

    function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {
        require(_exists(tokenId), "ERC721: operator query for nonexistent token");
        address owner = ERC721.ownerOf(tokenId);
        return (spender == owner || isApprovedForAll(owner, spender) || getApproved(tokenId) == spender);
    }

    function _safeMint(address to, uint256 tokenId) internal virtual {
        _safeMint(to, tokenId, "");
    }

    function _safeMint(
        address to,
        uint256 tokenId,
        bytes memory _data
    ) internal virtual {
        _mint(to, tokenId);
        require(
            _checkOnERC721Received(address(0), to, tokenId, _data),
            "ERC721: transfer to non ERC721Receiver implementer"
        );
    }

    function _mint(address to, uint256 tokenId) internal virtual {
        require(to != address(0), "ERC721: mint to the zero address");
        require(!_exists(tokenId), "ERC721: token already minted");

        _beforeTokenTransfer(address(0), to, tokenId);

        _balances[to] += 1;
        _owners[tokenId] = to;

        emit Transfer(address(0), to, tokenId);

        _afterTokenTransfer(address(0), to, tokenId);
    }

    function _burn(uint256 tokenId) internal virtual {
        address owner = ERC721.ownerOf(tokenId);

        _beforeTokenTransfer(owner, address(0), tokenId);

        
        _approve(address(0), tokenId);

        _balances[owner] -= 1;
        delete _owners[tokenId];

        emit Transfer(owner, address(0), tokenId);

        _afterTokenTransfer(owner, address(0), tokenId);
    }

    function _transfer(
        address from,
        address to,
        uint256 tokenId
    ) internal virtual {
        require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner");
        require(to != address(0), "ERC721: transfer to the zero address");

        _beforeTokenTransfer(from, to, tokenId);

        
        _approve(address(0), tokenId);

        _balances[from] -= 1;
        _balances[to] += 1;
        _owners[tokenId] = to;

        emit Transfer(from, to, tokenId);

        _afterTokenTransfer(from, to, tokenId);
    }

    function _approve(address to, uint256 tokenId) internal virtual {
        _tokenApprovals[tokenId] = to;
        emit Approval(ERC721.ownerOf(tokenId), to, tokenId);
    }

    function _setApprovalForAll(
        address owner,
        address operator,
        bool approved
    ) internal virtual {
        require(owner != operator, "ERC721: approve to caller");
        _operatorApprovals[owner][operator] = approved;
        emit ApprovalForAll(owner, operator, approved);
    }

    function _checkOnERC721Received(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) private returns (bool) {
        if (to.isContract()) {
            try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) {
                return retval == IERC721Receiver.onERC721Received.selector;
            } catch (bytes memory reason) {
                if (reason.length == 0) {
                    revert("ERC721: transfer to non ERC721Receiver implementer");
                } else {
                    assembly {
                        revert(add(32, reason), mload(reason))
                    }
                }
            }
        } else {
            return true;
        }
    }

    function _beforeTokenTransfer(
        address from,
        address to,
        uint256 tokenId
    ) internal virtual {}

    function _afterTokenTransfer(
        address from,
        address to,
        uint256 tokenId
    ) internal virtual {}
}

// File: contracts/MoonLoop.sol



/*
FKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFK
FKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFK
FKFKFKFKFKFKFK               FKFKFKFKFKFKFKFKFKFKFK     FKFKFKFKFK     FKFKFKFKFKFKFKFKFKFKFKFKF
FKFKFKFKFKFKFK               FKFKFKFKFKFKFKFKFKFKFK     FKFKFKFK    FKFKFKFKFKFKFKFKFKFKFKFKFKFK
FKFKFKFKFKFKFK     FKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFK     FKFKFK    FKFKFKFKFKFKFKFKFKFKFKFKFKFKFK
FKFKFKFKFKFKFK     FKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFK     FKFK    FKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFK
FKFKFKFKFKFKFK             FKFKFKFKFKFKFKFKFKFKFKFK     FK    FKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFK
FKFKFKFKFKFKFK             FKFKFKFKFKFKFKFKFKFKFKFK         FKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFK
FKFKFKFKFKFKFK     FKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFK     FK    FKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFK
FKFKFKFKFKFKFK     FKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFK     FKFK    FKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFK
FKFKFKFKFKFKFK     FKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFK     FKFKFK    FKFKFKFKFKFKFKFKFKFKFKFKFKFKFK
FKFKFKFKFKFKFK     FKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFK     FKFKFKFK     FKFKFKFKFKFKFKFKFKFKFKFKFKF
FKFKFKFKFKFKFK     FKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFK     FKFKFKFKFK      FKFKFKFKFKFKFKFKFKFKFKFK
FKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFK
FKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFKFK
*/

pragma solidity >=0.7.0 <0.9.0;




contract MOONLOOP is ERC721, Ownable {
  using Strings for uint256;
  using Counters for Counters.Counter;

  Counters.Counter private supply;

  string public uriPrefix = "ipfs://QmbY7ye5jAPMz6sfdoub24NrLGdL7SudG5MpyB7Ja7HCPB/";
  string public uriSuffix = ".json";
  string public hiddenMetadataUri;
 
  uint256 public cost = 0.0000001 ether;
  uint256 public maxSupply = 30;
  uint256 public maxMintAmountPerTx = 30;

  bool public paused = false;
  bool public revealed = true;

  constructor() ERC721("Moon Loop", "ML") {
    setHiddenMetadataUri("ipfs://Qmb9C4PVGNbZfmR1owya2QmcETiHT29uJRUomgBEdLqVtb/hidden.png");
  }

  modifier mintCompliance(uint256 _mintAmount) {
    require(_mintAmount > 0 && _mintAmount <= maxMintAmountPerTx, "Invalid mint amount!");
    require(supply.current() + _mintAmount <= maxSupply, "Max supply exceeded!");
    _;
  }

  function totalSupply() public view returns (uint256) {
    return supply.current();
  }

  function mint(uint256 _mintAmount) public payable mintCompliance(_mintAmount) {
    require(!paused, "The contract is paused!");
    require(msg.value >= cost * _mintAmount, "Insufficient funds!");

    _mintLoop(msg.sender, _mintAmount);
  }
  
  function mintForAddress(uint256 _mintAmount, address _receiver) public mintCompliance(_mintAmount) onlyOwner {
    _mintLoop(_receiver, _mintAmount);
  }

  function walletOfOwner(address _owner)
    public
    view
    returns (uint256[] memory)
  {
    uint256 ownerTokenCount = balanceOf(_owner);
    uint256[] memory ownedTokenIds = new uint256[](ownerTokenCount);
    uint256 currentTokenId = 1;
    uint256 ownedTokenIndex = 0;

    while (ownedTokenIndex < ownerTokenCount && currentTokenId <= maxSupply) {
      address currentTokenOwner = ownerOf(currentTokenId);

      if (currentTokenOwner == _owner) {
        ownedTokenIds[ownedTokenIndex] = currentTokenId;

        ownedTokenIndex++;
      }

      currentTokenId++;
    }

    return ownedTokenIds;
  }

  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, _tokenId.toString(), uriSuffix))
        : "";
  }

  function setRevealed(bool _state) public onlyOwner {
    revealed = _state;
  }

  function setCost(uint256 _cost) public onlyOwner {
    cost = _cost;
  }

  function setMaxMintAmountPerTx(uint256 _maxMintAmountPerTx) public onlyOwner {
    maxMintAmountPerTx = _maxMintAmountPerTx;
  }

  function setHiddenMetadataUri(string memory _hiddenMetadataUri) public onlyOwner {
    hiddenMetadataUri = _hiddenMetadataUri;
  }

  function setUriPrefix(string memory _uriPrefix) public onlyOwner {
    uriPrefix = _uriPrefix;
  }

  function setUriSuffix(string memory _uriSuffix) public onlyOwner {
    uriSuffix = _uriSuffix;
  }

  function setPaused(bool _state) public onlyOwner {
    paused = _state;
  }

  function withdraw() public onlyOwner {
 
    (bool os, ) = payable(owner()).call{value: address(this).balance}("");
    require(os);
  }
 
  function _mintLoop(address _receiver, uint256 _mintAmount) internal {
    for (uint256 i = 0; i < _mintAmount; i++) {
      supply.increment();
      _safeMint(_receiver, supply.current());
    }
  }

  function _baseURI() internal view virtual override returns (string memory) {
    return uriPrefix;
  }
}