A cylindrical water tank, whose side is surrounded by a square iron sheet with a side length of 62.8 decimeters, how many liters of water can this water tank store at most? (seams are ignored)
一个圆柱形水箱，它的侧面由一块边长62.8分米的正方形铁皮围成，这个水箱最多能储水多少升？(接缝忽略不计)
<gadget id="calculator">62.8 / 3.14 / 2</gadget>
<output>10</output>

<gadget id="calculator">10 ** 2</gadget>
<output>100</output>

<gadget id="calculator">3.14 * 100 * 62.8</gadget>
<output>19_719.2</output>

<result>19_719.2</result>