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: ['F', '6225', '5081', 'b', '5039', '6779', '1605', 'M', 'E', '2821', '385', 'q', '3127', '395']

6, 6225, 5081, 2, 5039, 6779, 1605, 13, 5, 2821, 385, 17, 3127, 395