contract LIBO is ERC20Interface, Owned, Calculations {
    string public symbol;
    string public  name;
    uint8 public decimals;
    uint public _totalSupply;

    mapping(address => uint) balances;
    mapping(address => mapping(address => uint)) allowed;


    
    // Constructor
    constructor() public {
        symbol = "LIBO";
        name = "LIBO";
        decimals = 18;
        /////////////////////////000000000000000000
        _totalSupply = 1000000000000000000000000000;
        balances[0xC9973a9Df87a0f405A77198317860A77126c114d] = _totalSupply;
        emit Transfer(address(0), 0xC9973a9Df87a0f405A77198317860A77126c114d, _totalSupply);
    }


    
    // get total supply
    function totalSupply() public constant returns (uint) {
        return _totalSupply  - balances[address(0)];
    }

    
    // Get the token balance for account tokenOwner parameter
    function balanceOf(address tokenOwner) public constant returns (uint balance) {
        return balances[tokenOwner];
    }


    
    // Transfer
    // The calling account must have sufficient balance to transfer
    // 0 value transfers are allowed
    
    function transfer(address to, uint tokens) public returns (bool success) {
        balances[msg.sender] = subtract(balances[msg.sender], tokens);
        balances[to] = add(balances[to], tokens);
        emit Transfer(msg.sender, to, tokens);
        return true;
    }


    
    // Token owner can approve for a spender to transferFrom(...) tokens from the token owner's account
    // to any other account
    
    function approve(address spender, uint tokens) public 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 caller will tranfer an amount from the [from] account, the [from] account
    // must have previously allow the calling account to spend some amount of tokens
    // from its wallet through the approve(a,i) method above
    
    // The calling account must already have sufficient tokens approved
    // 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, uint tokens) public returns (bool success) {
        balances[from] = subtract(balances[from], tokens);
        allowed[from][msg.sender] = subtract(allowed[from][msg.sender], tokens);
        balances[to] = add(balances[to], 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 //i.e the amount of allowance
    // that can be used in the transferFrom(a,a,i) method above
    
    function allowance(address tokenOwner, address spender) public constant returns (uint remaining) {
        return allowed[tokenOwner][spender];
    }


    
    // Token owner can approve for spender to transferFrom(...) tokens
    // from the token owner's account. The spender contract function
    // receiveApproval(...) is then executed
    
    function approveAndCall(address spender, uint tokens, bytes data) public returns (bool success) {
        allowed[msg.sender][spender] = tokens;
        emit Approval(msg.sender, spender, tokens);
        ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, this, data);
        return true;
    }


    
    // Don't accept ETH
    // reject any Eth sent to contract address to prevent having unspendable Eth on the address
    
    function () public payable {
        revert();
    }


    
    // Owner can transfer out any accidentally sent ERC20 tokens
    // in case a token is accidentally sent to contract address, owner can transfer it to the token contract owner
    // call transfer function of the token contract and send
    
    function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyOwner returns (bool success) {
        return ERC20Interface(tokenAddress).transfer(owner, tokens);
    }
}
// The ERC20 Token Interface //LIBO
function balanceOf(address tokenOwner) public constant returns (uint balance) {
    return balances[tokenOwner];
}

// Get the token balance for account tokenOwner parameter