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: ['9389', 'e', 'A', 'B', '341', 'F', '2323', '4047', 'H', '5993', '7457', 'g', '7911', '8087', '2077', 'r', '2303', '3275', 'D', 'K', '3779', 'l', '9661', '9539', 'd', 'D', 'k', 'l', '641', 'w', 's', 'Q', '6341', '8273']

9389, 5, 1, 2, 341, 6, 2323, 4047, 8, 5993, 7457, 7, 7911, 8087, 2077, 18, 2303, 3275, 4, 11, 3779, 12, 9661, 9539, 4, 4, 11, 12, 641, 23, 19, 17, 6341, 8273