Given the task definition and input, reply with output. 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.

[170, 146, 278, 212, 79, 175, 256, 230, 120, 282, 126, 97, 190, 33, 196, 174, 39, 188, 47, 243], k=4

79