faucet that is not turned off tightly will waste about 112 kilograms of water every day, so how many kilograms of water will be wasted in a month (calculated on the basis of 31 days).
一个没关紧的水龙头每天大约要浪费112千克的水，照这样计算一个月(按31天计算)浪费多少千克水．
<gadget id="calculator">112 * 31</gadget>
<output>3_472</output>

<result>3_472</result>