A rectangular square with a length of 100 meters and a width of 50 meters is crowded with people. How many people are there?
在长100米、宽50米的长方形广场上挤满了人，问约有多少人多少
<gadget id="calculator">100 * 50</gadget>
<output>5_000</output>

<gadget id="calculator">6 * 5_000</gadget>
<output>30_000</output>

<result>30_000</result>