There are 4 rooms in the school dormitory, each room has 8 beds, and each bed has 2 quilts, how many quilts are there in total?
学校宿舍里有4个房间，每个房间有8个床，每个床上有2条被子，共有多少个被子？
<gadget id="calculator">4 * 8 * 2</gadget>
<output>64</output>

<result>64</result>