pragma solidity ^0.4.18;

contract SafeMath {

function safeAdd(uint a, uint b) public pure returns (uint c) {

c = a + b;

require(c >= a);

}

function safeSub(uint a, uint b) public pure returns (uint c) {

require(b <= a);

c = a - b;

}

function safeMul(uint a, uint b) public pure returns (uint c) {

c = a * b;

require(a == 0 || c / a == b);

}

function safeDiv(uint a, uint b) public pure returns (uint c) {

require(b > 0);

c = a / b;

}

}

contract ERC20Interface {

function totalSupply() public constant returns (uint);

function balanceOf(address tokenOwner) public constant returns (uint balance);

function allowance(address tokenOwner, address spender) public constant returns (uint remaining);

function transfer(address to, uint tokens) public returns (bool success);

function approve(address spender, uint tokens) public returns (bool success);

function transferFrom(address from, address to, uint tokens) public returns (bool success);

event Transfer(address indexed from, address indexed to, uint tokens);

event Approval(address indexed tokenOwner, address indexed spender, uint tokens);

}

contract ApproveAndCallFallBack {

function receiveApproval(address from, uint256 tokens, address token, bytes data) public;

}

contract Owned {

address public owner;

address public newOwner;

event OwnershipTransferred(address indexed _from, address indexed _to);

function Owned() public {

owner = msg.sender;

}

modifier onlyOwner {

require(msg.sender == owner);

_;

}

function transferOwnership(address _newOwner) public onlyOwner {

newOwner = _newOwner;

}

function acceptOwnership() public {

require(msg.sender == newOwner);

OwnershipTransferred(owner, newOwner);

owner = newOwner;

newOwner = address(0);

}

}

contract SeanTestToken is ERC20Interface, Owned, SafeMath {

string public symbol;

string public name;

uint8 public decimals;

uint public _totalSupply;

mapping(address => uint) balances;

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

// ------------------------------------------------------------------------

// Constructor

// ------------------------------------------------------------------------

function SeanTestToken() public {

symbol = "SEANTest";

name = "Sean Test";

decimals = 0;

_totalSupply = 100000;

balances[0xB077883bF6154C9a24538A580Bd0d2F905D85384] = _totalSupply;

Transfer(address(0), 0xB077883bF6154C9a24538A580Bd0d2F905D85384, _totalSupply);

}

// ------------------------------------------------------------------------

// Total supply

// ------------------------------------------------------------------------

function totalSupply() public constant returns (uint) {

return _totalSupply - balances[address(0)];

}

// ------------------------------------------------------------------------

// Get the token balance for account `tokenOwner`

// ------------------------------------------------------------------------

function balanceOf(address tokenOwner) public constant returns (uint 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, uint tokens) public returns (bool success) {

balances[msg.sender] = safeSub(balances[msg.sender], tokens);

balances[to] = safeAdd(balances[to], tokens);

Transfer(msg.sender, to, tokens);

return true;

}

// ------------------------------------------------------------------------

// Token owner can approve for `spender` to transferFrom(...) `tokens`

// from the token owner's account

//

// https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md

// recommends that there are no checks for the approval double-spend attack

// as this should be implemented in user interfaces

// ------------------------------------------------------------------------

function approve(address spender, uint tokens) public returns (bool success) {

allowed[msg.sender][spender] = tokens;

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, uint tokens) public returns (bool success) {

balances[from] = safeSub(balances[from], tokens);

allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], tokens);

balances[to] = safeAdd(balances[to], tokens);

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 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;

Approval(msg.sender, spender, tokens);

ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, this, data);

return true;

}

// ------------------------------------------------------------------------

// Don't accept ETH

// ------------------------------------------------------------------------

function () public payable {

revert();

}

// ------------------------------------------------------------------------

// Owner can transfer out any accidentally sent ERC20 tokens

// ------------------------------------------------------------------------

function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyOwner returns (bool success) {

return ERC20Interface(tokenAddress).transfer(owner, tokens);

}

}