Cut a square iron sheet with a side length of 16 decimeters into circular pieces with a radius of 1 decimeter, how many pieces can be cut in total?
把一张边长是16分米的正方形铁片，剪成半径是1分米的圆片，一共可以剪几个？
<gadget id="calculator">1 * 2</gadget>
<output>2</output>

<gadget id="calculator">16 / 2</gadget>
<output>8</output>

<gadget id="calculator">8 * 8</gadget>
<output>64</output>

<result>64</result>