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: ['2813', '6093', 'K', '6911', '1765', '7313', 'O', '9011', 'j', '9477', 'L', 'e', '5161', '5729', '6851', 'R', 'O', '4325', 'V', 's', 'u', '3413', 'y', '4255']

2813, 6093, 11, 6911, 1765, 7313, 15, 9011, 10, 9477, 12, 5, 5161, 5729, 6851, 18, 15, 4325, 22, 19, 21, 3413, 25, 4255