In this task, you are given a list of integers and an integer k. You need to find the kth smallest element in the input list and return that.

Let me give you an example: [163, 290, 90, 51, 96, 86, 282, 265, 10, 85, 91, 201, 68, 126, 26, 228, 229, 236, 31, 71], k=14
The answer to this example can be: 201
Here is why: 201 is the 14th smallest element in the input list.

OK. solve this:
[70, 168, 205, 161, 124, 282, 177, 231, 271, 219, 87, 221, 42, 217, 230, 121, 37, 134, 15, 68], k=3
Answer:
42