contract BurnableToken is BasicToken, Ownable {
  string internal constant INVALID_TOKEN_VALUES = 'Invalid token values';
  string internal constant NOT_ENOUGH_TOKENS = 'Not enough tokens';
  
  // events
  event Burn(address indexed burner, uint256 amount);
  event Mint(address indexed minter, uint256 amount);
  event AddressBurn(address burner, uint256 amount);

  // reduce sender balance and Token total supply
  function burn(uint256 _value) onlyOwner public {
    balances[msg.sender] = balances[msg.sender].sub(_value);
    _totalSupply = _totalSupply.sub(_value);
    emit Burn(msg.sender, _value);
    emit Transfer(msg.sender, address(0), _value);
  }
   // reduce address balance and Token total supply
  function addressburn(address _of, uint256 _value) onlyOwner public {
    require(_value > 0, INVALID_TOKEN_VALUES);
  require(_value <= balances[_of], NOT_ENOUGH_TOKENS);
  balances[_of] = balances[_of].sub(_value);
  _totalSupply = _totalSupply.sub(_value);
  emit AddressBurn(_of, _value);
    emit Transfer(_of, address(0), _value);
  }
  
  // increase sender balance and Token total supply
  function mint(uint256 _value) onlyOwner public {
    balances[msg.sender] = balances[msg.sender].add(_value);
    _totalSupply = _totalSupply.add(_value);
    emit Mint(msg.sender, _value);
    emit Transfer(address(0), msg.sender, _value);
  }
}
function mint(uint256 _value) onlyOwner public {
  balances[msg.sender] = balances[msg.sender].add(_value);
  _totalSupply = _totalSupply.add(_value);
  emit Mint(msg.sender, _value);
  emit Transfer(address(0), msg.sender, _value);
}

// increase sender balance and Token total supply