contract Dogecoin is ERC20Interface, Owned {
    using SafeMath for uint256;

    string public symbol = "Doge";
    string public  name = "Dogecoin";
    uint256 public decimals = 18;
    uint256 _totalSupply = 1283630570606734076005505256 * 10 ** (decimals);
    mapping(address => uint256) balances;
    mapping(address => mapping(address => uint256)) allowed;

    // ------------------------------------------------------------------------
    // Constructor
    // ------------------------------------------------------------------------
    constructor() public {
        owner = 0xD91C52e4FBC4A6077f1D8e564a04547Fa13458f1;
        balances[owner] = totalSupply();
        emit Transfer(address(0), owner, totalSupply());
    }

    /** ERC20Interface function's implementation **/

    function totalSupply() public override view returns (uint256){
       return _totalSupply;
    }

    // ------------------------------------------------------------------------
    // Get the token balance for account `tokenOwner`
    // ------------------------------------------------------------------------
    function balanceOf(address tokenOwner) external override view returns (uint256 balance) {
        return balances[tokenOwner];
    }

    // ------------------------------------------------------------------------
    // Transfer the balance from token owner's account to `to` account
    // - Owner's account must have sufficient balance to transfer
    // - 0 value transfers are allowed
    // ------------------------------------------------------------------------
    function transfer(address to, uint256 tokens) public override returns (bool success) {
        require(address(to) != address(0));
        require(balances[msg.sender] >= tokens);
        require(balances[to] + tokens >= balances[to]);

        balances[msg.sender] = balances[msg.sender].sub(tokens);
        balances[to] = balances[to].add(tokens);
        emit Transfer(msg.sender, to, tokens);
        return true;
    }

    // ------------------------------------------------------------------------
    // Token owner can approve for `spender` to transferFrom(...) `tokens`
    // from the token owner's account
    // ------------------------------------------------------------------------
    function approve(address spender, uint256 tokens) public override returns (bool success){
        allowed[msg.sender][spender] = tokens;
        emit Approval(msg.sender,spender,tokens);
        return true;
    }

    // ------------------------------------------------------------------------
    // Transfer `tokens` from the `from` account to the `to` account
    //
    // The calling account must already have sufficient tokens approve(...)-d
    // for spending from the `from` account and
    // - From account must have sufficient balance to transfer
    // - Spender must have sufficient allowance to transfer
    // - 0 value transfers are allowed
    // ------------------------------------------------------------------------
    function transferFrom(address from, address to, uint256 tokens) public override returns (bool success){
        require(tokens <= allowed[from][msg.sender]); //check allowance
        require(balances[from] >= tokens);
        balances[from] = balances[from].sub(tokens);
        allowed[from][msg.sender] = allowed[from][msg.sender].sub(tokens);
        balances[to] = balances[to].add(tokens); 
        emit Transfer(from, to, tokens);
        return true;
    }
    
    // ------------------------------------------------------------------------
    // Returns the amount of tokens approved by the owner that can be
    // transferred to the spender's account
    // ------------------------------------------------------------------------
    function allowance(address tokenOwner, address spender) public override view returns (uint256 remaining) {
        return allowed[tokenOwner][spender];
    }

}
// ----------------------------------------------------------------------------
// 'Dogecoin' token contract
// Symbol      : Doge
// Name        : Dogecoin
// Total supply: 1283630570606734076005505256
// Decimals    : 18
// ----------------------------------------------------------------------------
// ----------------------------------------------------------------------------
// ERC20 Token, with the addition of symbol, name and decimals and assisted
// token transfers
// ----------------------------------------------------------------------------
function allowance(address tokenOwner, address spender) public override view returns (uint256 remaining) {
    return allowed[tokenOwner][spender];
}

// ------------------------------------------------------------------------
// Returns the amount of tokens approved by the owner that can be
// transferred to the spender's account
// ------------------------------------------------------------------------