At the sports meeting, the teacher arranged for Ding Ding, Lili, Yunyun, and Lingling to run the 4*100-meter relay. How many different arrangements are there?
运动会上，老师安排丁丁、力力、云云、玲玲4人跑4*100米接力，有多少种不同的安排方法？
<gadget id="calculator">4 * 3 * 2 * 1</gadget>
<output>24</output>

<result>24</result>