contract BasicToken is ERC20Basic, Claimable {
  using SafeMath for uint256;

  BalanceSheet public balances;

  uint256 totalSupply_;

  function setBalanceSheet(address sheet) external onlyOwner {
    balances = BalanceSheet(sheet);
    balances.claimOwnership();
  }

  /**
  * @dev total number of tokens in existence
  */
  function totalSupply() public view returns (uint256) {
    return totalSupply_;
  }

  /**
  * @dev transfer token for a specified address
  * @param _to The address to transfer to.
  * @param _value The amount to be transferred.
  */
  function transfer(address _to, uint256 _value) public returns (bool) {
    transferAllArgsNoAllowance(msg.sender, _to, _value);
    return true;
  }

  function transferAllArgsNoAllowance(address _from, address _to, uint256 _value) internal {
    require(_to != address(0));
    require(_from != address(0));
    require(_value <= balances.balanceOf(_from));

    // SafeMath.sub will throw if there is not enough balance.
    balances.subBalance(_from, _value);
    balances.addBalance(_to, _value);
    Transfer(_from, _to, _value);
  }

  /**
  * @dev Gets the balance of the specified address.
  * @param _owner The address to query the the balance of.
  * @return An uint256 representing the amount owned by the passed address.
  */
  function balanceOf(address _owner) public view returns (uint256 balance) {
    return balances.balanceOf(_owner);
  }
}
function transfer(address _to, uint256 _value) public returns (bool) {
    transferAllArgsNoAllowance(msg.sender, _to, _value);
    return true;
  }
/**
 * @dev transfer token for a specified address
 * @param _to The address to transfer to.
 * @param _value The amount to be transferred.
 */