A cylindrical tin can is 12.56 cm high, and its side view is a square. How many square centimeters of iron sheet is needed to make 5 such cans?
一个圆柱形的罐头盒，高12.56厘米，它的侧面展开图是一个正方形，做5个这样的罐头盒，至少需要多少平方厘米的铁皮？
<gadget id="calculator">12.56 / 3.14 / 2</gadget>
<output>2</output>

<gadget id="calculator">2 ** 2</gadget>
<output>4</output>

<gadget id="calculator">3.14 * 4 * 2</gadget>
<output>25.12</output>

<gadget id="calculator">12.56 * 12.56</gadget>
<output>157.7536</output>

<gadget id="calculator">25.12 + 157.7536</gadget>
<output>182.8736</output>

<gadget id="calculator">182.8736 * 5</gadget>
<output>914.368</output>

<result>914.368</result>