A, B, and C have a 1-minute rope skipping competition. A jumps 45 times, B jumps twice as much as A, and C jumps twice as much as B. How many times did C jump in 1 minute?
甲、乙、丙开展1分钟跳绳比赛，甲跳45下，乙跳的是甲的2倍，丙跳的是乙的2倍．丙1分钟跳了多少下？
<gadget id="calculator">45 * 2 * 2</gadget>
<output>180</output>

<result>180</result>