Class 61 has four students A, B, C, and D standing together to take a photo. Student A just wants to stand on the far left, and the other three can stand anywhere. How many different ways are there in total? (use your favorite method to solve)
六1班有A、B、C、D四位同学站着合拍一张照片，A同学只想站在最左边，其余三人可以站任意位置，一共有哪几种不同的站法？(用自己喜欢的方法来解决)
<gadget id="calculator">3 * 2 * 1</gadget>
<output>6</output>

<result>6</result>