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Outline

•  contract EtherZaarFactory
•    - function EtherZaarFactory()
•    - function createERC20(address _initial ...
•  contract ERC20Interface *
•    - function balanceOf(address _owner)
•    - function transfer(address _to, uint25 ...
•    - function transferFrom(address _from, ...
•    - function approve(address _spender, ui ...
•    - function allowance(address _owner, ad ...
•  contract ERC20 is ERC20Interface *
•    - function ERC20(
•    - function transfer(address _to, uint25 ...
•    - function transferFrom(address _from, ...
•    - function balanceOf(address _owner)
•    - function approve(address _spender, ui ...
•    - function allowance(address _owner, ad ...

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/**
 *Submitted for verification at Etherscan.io on 2018-04-12
*/

pragma solidity ^0.4.18;

contract EtherZaarFactory {

    function EtherZaarFactory() public {
    }

    function createERC20(address _initialOwner, uint256 _initialAmount, string _name, uint8 _decimals, string _symbol) 
        public 
    returns (address) {

        ERC20 newToken = (new ERC20(_initialOwner, _initialAmount, _name, _decimals, _symbol));

        return address(newToken);
    }

}

contract ERC20Interface {

    uint256 public totalSupply;

    function balanceOf(address _owner) public view returns (uint256 balance);

    function transfer(address _to, uint256 _value) public returns (bool success);

    function transferFrom(address _from, address _to, uint256 _value) public returns (bool success);

    function approve(address _spender, uint256 _value) public returns (bool success);

    function allowance(address _owner, address _spender) public view returns (uint256 remaining);

    event Transfer(address indexed _from, address indexed _to, uint256 _value); 
    event Approval(address indexed _owner, address indexed _spender, uint256 _value);
}

pragma solidity ^0.4.18;

contract ERC20 is ERC20Interface {

    uint256 constant private MAX_UINT256 = 2**256 - 1;
    mapping (address => uint256) public balances;
    mapping (address => mapping (address => uint256)) public allowed;

    string public name;
    uint8 public decimals;
    string public symbol;
    
    function ERC20(
        address _initialOwner,
        uint256 _initialAmount,
        string _tokenName,
        uint8 _decimalUnits,
        string _tokenSymbol
    ) public {
        balances[_initialOwner] = _initialAmount;               
        totalSupply = _initialAmount;                        
        name = _tokenName;                                   
        decimals = _decimalUnits;                            
        symbol = _tokenSymbol;   
        emit Transfer(_initialOwner, _initialOwner, _initialAmount);
    }

    function transfer(address _to, uint256 _value) public returns (bool success) {
        require(balances[msg.sender] >= _value);
        balances[msg.sender] -= _value;
        balances[_to] += _value;
        emit Transfer(msg.sender, _to, _value);
        return true;
    }

    function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) {
        uint256 allowance = allowed[_from][msg.sender];
        require(balances[_from] >= _value && allowance >= _value);
        balances[_to] += _value;
        balances[_from] -= _value;
        if (allowance < MAX_UINT256) {
            allowed[_from][msg.sender] -= _value;
        }
        emit Transfer(_from, _to, _value);
        return true;
    }

    function balanceOf(address _owner) public view returns (uint256 balance) {
        return balances[_owner];
    }

    function approve(address _spender, uint256 _value) public returns (bool success) {
        allowed[msg.sender][_spender] = _value;
        emit Approval(msg.sender, _spender, _value);
        return true;
    }

    function allowance(address _owner, address _spender) public view returns (uint256 remaining) {
        return allowed[_owner][_spender];
    }   
}

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