Cut out the largest square from a rectangle with a length of 34dm and a width of 20dm. What is the area of the remaining part?
从一个长34dm，宽20dm的长方形剪下一个最大的正方形，剩下部分的面积是多少平方分米？
<gadget id="calculator">34 - 20</gadget>
<output>14</output>

<gadget id="calculator">34 * 14</gadget>
<output>476</output>

<result>476</result>