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: ['4737', 'a', 'T', '6141', '5775', '3999', '2627', 's', 'S', 'q', 'a', '6121', '2759', '9085', 'V', 'D', '2313', 'D', '4521', 'O', 'd', 'V', 'E', 'V', '7047', 'w']

4737, 1, 20, 6141, 5775, 3999, 2627, 19, 19, 17, 1, 6121, 2759, 9085, 22, 4, 2313, 4, 4521, 15, 4, 22, 5, 22, 7047, 23