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: ['h', '6011', '9953', 'W', '3487', '2765', '2677', '3229', 'o', 'U', 'n', 'e', '7333', 'P', 'D', '9389', '2853', 'H', '6139', '9135', '6887', '4575', 'x', '4819', 'X', '4057', '3279', '5481', '185']

8, 6011, 9953, 23, 3487, 2765, 2677, 3229, 15, 21, 14, 5, 7333, 16, 4, 9389, 2853, 8, 6139, 9135, 6887, 4575, 24, 4819, 24, 4057, 3279, 5481, 185