How many circles with a radius of 1 cm can be cut from a rectangular paper with a length of 16 cm and a width of 12 cm.
在一张长16cm、宽12cm的长方形纸里，最多可以剪多少个半径是1cm的圆．
<gadget id="calculator">1 * 2</gadget>
<output>2</output>

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

<gadget id="calculator">12 / 2</gadget>
<output>6</output>

<gadget id="calculator">8 * 6</gadget>
<output>48</output>

<result>48</result>