Definition: In this task, you are given an input list A. You need to convert all the alphabets in the list with a number representing their position in the English alphabet. E.g., replace A by 1, B by 2, a by 1, b by 2, and so on.
Input: ['2113', '2283', 's', 'A', 'L', '8877', 'l', 'r', '3157', '6623', 'q']

2113, 2283, 19, 1, 12, 8877, 12, 18, 3157, 6623, 17