Military training queue training platoon formation. The small army is the sixth from the front, and the seventh is the small army from the back. How many people are there in this phalanx?
军训队列训练排方阵．从前面数小军是第6个，从后面数小军是第7个，这个方阵共有多少人？
<gadget id="calculator">7 - 1</gadget>
<output>6</output>

<gadget id="calculator">6 + 6</gadget>
<output>12</output>

<gadget id="calculator">12 * 12</gadget>
<output>144</output>

<result>144</result>