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: ['4933', 'Y', '5361', 'Z', 'Y', '71', '3379', '9453', '1205', 'H', '2821', 'h', '3607', 'l', '93', '8217', 'A', 'K', 'R', '31', 'C', '3459', '717', 'E', '6857', '6091', 'e', 'C', '3911', 'M', 'i', 'j', '2315', 'l', 'z', 'D']

4933, 25, 5361, 26, 25, 71, 3379, 9453, 1205, 8, 2821, 8, 3607, 12, 93, 8217, 1, 11, 18, 31, 3, 3459, 717, 5, 6857, 6091, 5, 3, 3911, 13, 9, 10, 2315, 12, 26, 4