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: ['8833', '7857', '6859', 'n', 'W', '8893', '8979', 'S', 'M', 'Q', 'q', '5065', '97', '2685', '8231', '3709', 'Y', 'Z', '6155', 'h', '4397', 'O', '6653', '5643', 'o', '4599']

8833, 7857, 6859, 14, 23, 8893, 8979, 19, 13, 17, 17, 5065, 97, 2685, 8231, 3709, 25, 26, 6155, 8, 4397, 15, 6653, 5643, 15, 4599