When Wantian Elementary School performed in the phalanx of the first sports festival, there were 40 people in the outermost layer. How many people participated in the phalanx performance?
万田小学在第一届体育节方阵表演时中，最外层一共有有40人，参加这个方阵表演的一共有多少人．
<gadget id="calculator">40 / 4</gadget>
<output>10</output>

<gadget id="calculator">10 + 1</gadget>
<output>11</output>

<gadget id="calculator">11 * 11</gadget>
<output>121</output>

<result>121</result>