Define a new operation: A*B=3*A+4*B, then 10*11=how much.
定义新运算：A※B=3*A+4*B，那么10※11=多少．
<gadget id="calculator">3 * 10</gadget>
<output>30</output>

<gadget id="calculator">4 * 11</gadget>
<output>44</output>

<gadget id="calculator">30 + 44</gadget>
<output>74</output>

<result>74</result>