The school sports team formed a phalanx to perform "Chinese Kung Fu". The number of people in the outermost layer is 48.
学校体育队排成一个方阵表演《中国功夫》，最外层的人数是48人，方阵外层每边有多少人．
<gadget id="calculator">48 / 4</gadget>
<output>12</output>

<gadget id="calculator">12 + 1</gadget>
<output>13</output>

<result>13</result>