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: ['9075', 'K', 'p', '5159', 'T', 'g', '5453', '2515', '1089', 'X', '8375', 'h', '7065', 'I', '2669', 'b', 'm', 'e', 'I', 'a', 'J', 'C', 'g', '4693', 'a']

9075, 11, 16, 5159, 20, 7, 5453, 2515, 1089, 24, 8375, 8, 7065, 9, 2669, 2, 13, 5, 9, 1, 10, 3, 7, 4693, 1