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: ['G', 'q', 'W', 'o', 'A', '7381', '4553', '5219', 'n', 'p', '61', '1585', '5971']

7, 17, 23, 15, 1, 7381, 4553, 5219, 14, 16, 61, 1585, 5971