On a certain day, a total of 55 people from the Red Cross Aid Station participated in the voluntary blood donation, and each person donated 200 milliliters. How many liters of blood was donated by the Red Cross Aid Station on this day?
某一天红十字救助站共有55人参加了义务献血，且每人均献200毫升，这一天红十字救助站一共献血多少升．
<gadget id="calculator">55 * 200</gadget>
<output>11_000</output>

<gadget id="calculator">11_000 / 1_000</gadget>
<output>11</output>

<result>11</result>