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: ['G', 'X', '4497', '357', '8565', 'y', '393', '9183', '3641', '4885', 'n', 'V', 'M', 'C', 'B', 'Y', '9493', '4905', '1729', '3111', '7237', 'o', '9425', '2361', '5851', '891', 'B', '8693', '5309', '4685']

7, 24, 4497, 357, 8565, 25, 393, 9183, 3641, 4885, 14, 22, 13, 3, 2, 25, 9493, 4905, 1729, 3111, 7237, 15, 9425, 2361, 5851, 891, 2, 8693, 5309, 4685