If the length of a rectangle is reduced by 5 cm and the width is reduced by 2 cm, then the area is reduced by 66 square centimeters, and the remaining part is exactly a square. What is the area of the original rectangle in square centimeters?
一个长方形，如果长减少5厘米，宽减少2厘米，那么面积就减少66平方厘米，这时剩下的部分恰好是一个正方形，则原来长方形的面积是多少平方厘米．
<gadget id="calculator">8 + 5</gadget>
<output>13</output>

<gadget id="calculator">8 + 2</gadget>
<output>10</output>

<gadget id="calculator">13 * 10</gadget>
<output>130</output>

<result>130</result>