The length and width of a rectangle (both integral decimeters) are two adjacent natural numbers. It is known that the perimeter of this rectangle is 14 decimeters, and its area is how many square centimeters.
一个长方形的长和宽的长度(均为整分米数)为相邻的两个自然数，已知这个长方形的周长为14分米，它的面积为多少平方厘米．
<gadget id="calculator">4 * 3</gadget>
<output>12</output>

<gadget id="calculator">12 * 100</gadget>
<output>1_200</output>

<result>1_200</result>