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: ['D', 'x', 'r', 'G', 'J', 'q', 'N', '8493', '3351', 'S', '679', '7525', '245', '7573', 'F', '2233', '7873', 'd', 'S', 'D', '4427', 'N', '6373', 'l', '7383', '8411', 'H']

4, 24, 18, 7, 10, 17, 14, 8493, 3351, 19, 679, 7525, 245, 7573, 6, 2233, 7873, 4, 19, 4, 4427, 14, 6373, 12, 7383, 8411, 8