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Outline

•  contract Token *
•    - function SetupToken(string memory tok ...
•    - function totalSupply()
•    - function balanceOf(address _owner)
•    - function transfer(address _to, uint25 ...
•    - function transferFrom(
•    - function approve(address _spender, ui ...
•    - function allowance(address _owner, ad ...

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/**
 *Submitted for verification at Etherscan.io on 2020-04-21
*/

contract Token {
    string public symbol = "";
    string public name = "";
    uint8 public constant decimals = 18;
    uint256 _totalSupply = 0;
    address owner = 0x0000000000000000000000000000000000000000;
    bool setupDone = false;
   
    event Transfer(address indexed _from, address indexed _to, uint256 _value);
    event Approval(address indexed _owner, address indexed _spender, uint256 _value);
 
    mapping(address => uint256) balances;
 
    mapping(address => mapping (address => uint256)) allowed;
 
    constructor(address adr) public {
        owner = adr;        
    }
   
    function SetupToken(string memory tokenName, string memory tokenSymbol, uint256 tokenSupply) public
    {
        if (msg.sender == owner && setupDone == false)
        {
            symbol = tokenSymbol;
            name = tokenName;
            _totalSupply = tokenSupply * 1000000000000000000;
            balances[owner] = _totalSupply;
            setupDone = true;
        }
    }
 
    function totalSupply() public view returns (uint256 totalSupply) {        
        return _totalSupply;
    }
 
    function balanceOf(address _owner) public view returns (uint256 balance) {
        return balances[_owner];
    }
 
    function transfer(address _to, uint256 _amount) public returns (bool success) {
        if (balances[msg.sender] >= _amount
            && _amount > 0
            && balances[_to] + _amount > balances[_to]) {
            balances[msg.sender] -= _amount;
            balances[_to] += _amount;
            emit Transfer(msg.sender, _to, _amount);
            return true;
        } else {
            return false;
        }
    }
 
    function transferFrom(
        address _from,
        address _to,
        uint256 _amount
    )  public returns (bool success) {
        if (balances[_from] >= _amount
            && allowed[_from][msg.sender] >= _amount
            && _amount > 0
            && balances[_to] + _amount > balances[_to]) {
            balances[_from] -= _amount;
            allowed[_from][msg.sender] -= _amount;
            balances[_to] += _amount;
            emit Transfer(_from, _to, _amount);
            return true;
        } else {
            return false;
        }
    }
 
    function approve(address _spender, uint256 _amount) public returns (bool success) {
        allowed[msg.sender][_spender] = _amount;
        emit Approval(msg.sender, _spender, _amount);
        return true;
    }
 
    function allowance(address _owner, address _spender) public view returns (uint256 remaining) {
        return allowed[_owner][_spender];
    }
}

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ipfs://5b8878f5587a0571ced97bd287c020c37afa59d79a69a76edfcff817bbe1af8a