```\\nfunction feed(uint256 intoReserves, uint256 intoGrandPrize)\\n    external\\n    payable\\n    onlyOwner\\n{\\n    require(\\n        msg.value > 0 && intoReserves.add(intoGrandPrize) == msg.value,\\n        "DCBW721: Balance-Value Mismatch"\\n    );\\n    _updateGrandPrizePool(_grandPrizePool.add(intoGrandPrize));\\n    _updateReserves(_reserves.add(intoReserves));\\n}\\n```\\n