If a circle with a radius of 1 cm is cut from a rectangular piece of paper with a length of 12 cm and a width of 9 cm, what is the remaining area in square centimeters?
在一张长12厘米，宽9厘米的长方形纸片上剪半径为1厘米的圆片，剩下的面积为多少平方厘米．
<gadget id="calculator">12 * 9</gadget>
<output>108</output>

<gadget id="calculator">1 ** 2</gadget>
<output>1</output>

<gadget id="calculator">3.14 * 1</gadget>
<output>3.14</output>

<gadget id="calculator">108 - 3.14</gadget>
<output>104.86</output>

<result>104.86</result>