Voluntary blood donors generally donate 200 milliliters of blood each time, and a total of 180 people participate in voluntary blood donation on a certain day.
义务献血者每次献血量一般为200毫升，某一天中共有180人参加了义务献血，这一天的献血量共多少升．
<gadget id="calculator">200 * 180</gadget>
<output>36_000</output>

<gadget id="calculator">36_000 / 1_000</gadget>
<output>36</output>

<result>36</result>