Multiply a two-digit integer by 4.02, and the product obtained is an integer, then what is the 10 times of this product.
用4.02乘以一个两位整数，得到的乘积是一个整数，那么这个乘积的10倍是多少．
<gadget id="calculator">4.02 * 50 * 10</gadget>
<output>2_010</output>

<result>2_010</result>