15*50=750, if 15 is enlarged by 5 times and 50 is reduced by 5 times, what is the current product
15*50=750，如果把15扩大5倍，50缩小5倍，现在的积是多少
<gadget id="calculator">15 * 50</gadget>
<output>750</output>

<result>750</result>