A square flower bed is surrounded by a cement pavement with a width of 1 meter. The area of the pavement is 100 square meters. Find the area of the square flower bed.
一个正方形花坛，四周是1米宽的水泥路面，其路面面积是100平方米，求正方形花坛的面积．
<gadget id="calculator">1 * 1 * 4</gadget>
<output>4</output>

<gadget id="calculator">100 - 4</gadget>
<output>96</output>

<gadget id="calculator">96 / 4 / 1</gadget>
<output>24</output>

<gadget id="calculator">24 * 24</gadget>
<output>576</output>

<result>576</result>