has 56 yuan, B has 34 yuan, how much money A gives to B, A and B have the same amount of money.
甲有56元，乙有34元，甲给乙多少元，甲乙两人的钱就一样多．
<gadget id="calculator">56 - 34</gadget>
<output>22</output>

<gadget id="calculator">22 / 2</gadget>
<output>11</output>

<result>11</result>