Definition: In this task, you are given a list of integers and an integer k. You need to add integer k to each element in the list and return the updated list.
Input: [137, 243, 228, 108, 269, 271, 140, 191, 147, 208, 145, 260, 36, 82, 223, 174, 107, 285, 272, 178] k=20

[157, 263, 248, 128, 289, 291, 160, 211, 167, 228, 165, 280, 56, 102, 243, 194, 127, 305, 292, 198]