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: ['8155', 'e', 'K', 'S', '1127', 'B', 'W', '5023', 'W', '9905', 'O', '9593', '2119', 'A', '7371', '99', 'g']

8155, 5, 11, 19, 1127, 2, 23, 5023, 23, 9905, 15, 9593, 2119, 1, 7371, 99, 7