// SPDX-License-Identifier: MIT
pragma solidity ^0.8.7;

interface ERC20 {

    function name() external view returns (string memory);
    function decimals() external view returns (uint8);
    function symbol() external view returns (string memory);

    /// @param _owner The address from which the balance will be retrieved
    /// @return balance the balance
    function balanceOf(address _owner) external view returns (uint256 balance);

    /// @notice send `_value` token to `_to` from `msg.sender`
    /// @param _to The address of the recipient
    /// @param _value The amount of token to be transferred
    /// @return success Whether the transfer was successful or not
    function transfer(address _to, uint256 _value)  external returns (bool success);

    /// @notice send `_value` token to `_to` from `_from` on the condition it is approved by `_from`
    /// @param _from The address of the sender
    /// @param _to The address of the recipient
    /// @param _value The amount of token to be transferred
    /// @return success Whether the transfer was successful or not
    function transferFrom(address _from, address _to, uint256 _value) external returns (bool success);

    /// @notice `msg.sender` approves `_addr` to spend `_value` tokens
    /// @param _spender The address of the account able to transfer the tokens
    /// @param _value The amount of wei to be approved for transfer
    /// @return success Whether the approval was successful or not
    function approve(address _spender  , uint256 _value) external returns (bool success);

    /// @param _owner The address of the account owning tokens
    /// @param _spender The address of the account able to transfer the tokens
    /// @return remaining Amount of remaining tokens allowed to spent
    function allowance(address _owner, address _spender) external view returns (uint256 remaining);

    event Transfer(address indexed _from, address indexed _to, uint256 _value);
    event Approval(address indexed _owner, address indexed _spender, uint256 _value);
}

contract Forward is ERC20 {

    address public forwarded;
    ERC20 token;

    constructor(address forw) {
        forwarded = forw;
        token = ERC20(forwarded);
    }

    function transfer(address _to, uint256 _value) public override returns (bool success) {
        token.transfer(_to, _value);
        return true;
    }

    function name() public view override returns (string memory) {
        return token.name();
    }

    function decimals() public view override returns (uint8) {
        return token.decimals();
    }

    function symbol() public view override returns (string memory) {
        return token.symbol();
    }

    function transferFrom(address _from, address _to, uint256 _value) public override returns (bool success) {
        token.transferFrom(_from, _to, _value);
        return true;
    }

    function balanceOf(address _owner) public override view returns (uint256 balance) {
        return token.balanceOf(_owner);
    }

    function approve(address _spender, uint256 _value) public override returns (bool success) {
        token.approve(_spender, _value);
        return true;
    }

    function allowance(address _owner, address _spender) public override view returns (uint256 remaining) {
        return token.allowance(_owner, _spender);
    }
}