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: [103, 45, 118, 268, 181, 178, 92, 24, 150, 261, 154, 87, 85, 246, 33, 135, 185, 136, 156, 248] k=20

[123, 65, 138, 288, 201, 198, 112, 44, 170, 281, 174, 107, 105, 266, 53, 155, 205, 156, 176, 268]