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: ['4059', '9089', '5623', 'C', 'L', 'q', 'w', '3417', 'h', 'D', 'q', 'w', 'U', 'M', '2557', '793', 'w', '9983', '8855', 'Y', 'b', 'a', '8211', 's', '2713', 'Q', '2073', 'Q', '4259', 'h', 'L', '2291', 'G', 'D']

4059, 9089, 5623, 3, 12, 17, 23, 3417, 8, 4, 17, 23, 21, 13, 2557, 793, 23, 9983, 8855, 25, 2, 1, 8211, 19, 2713, 17, 2073, 17, 4259, 8, 12, 2291, 7, 4