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.

Ex Input:
[261, 137, 226, 174, 152, 47, 248, 21, 250, 249, 211, 130, 135, 220, 110, 143, 259, 224, 106, 94], k=12

Ex Output:
211

Ex Input:
[292, 116, 83, 47, 68, 195, 133, 182, 231, 154, 128, 184, 263, 284, 22, 66, 127, 72, 228, 98], k=17

Ex Output:
231

Ex Input:
[90, 107, 78, 117, 51, 37, 210, 186, 155, 81, 245, 214, 203, 190, 67, 149, 99, 116, 21, 89], k=18

Ex Output:
210