There are 5 people in Li Cong's family. If Li Cong's weight is not counted, the average weight of the other 4 people is 56 kg. If Li Cong's weight is included, the average weight is 2 kg less. How much does Li Cong weigh?
李聪家有5人，如果不算李聪的重量，其余4人的平均体重是56千克．如果把李聪的算在内，平均体重少2千克，问李聪有多重？
<gadget id="calculator">56 - 2</gadget>
<output>54</output>

<gadget id="calculator">54 * 5</gadget>
<output>270</output>

<gadget id="calculator">56 * 4</gadget>
<output>224</output>

<gadget id="calculator">270 - 224</gadget>
<output>46</output>

<result>46</result>