There are 3 people in my front, back, left, and left. How many people are there in our phalanx?
我的前后左右各有3人，我们这个方阵共有多少人．
<gadget id="calculator">3 * 2</gadget>
<output>6</output>

<gadget id="calculator">6 + 1</gadget>
<output>7</output>

<gadget id="calculator">7 * 7</gadget>
<output>49</output>

<result>49</result>