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: ['5317', '7599', '7737', 'D', '9395', '4963', '6963', '6387', 'I', '813', 'v', '4939', '6689', 't', 'K', 'n', 'F', 'Z', 'I', '9279', 'q', '5457', 'g', '4077', 'h', 'B', 'O']

5317, 7599, 7737, 4, 9395, 4963, 6963, 6387, 9, 813, 22, 4939, 6689, 20, 11, 14, 6, 26, 9, 9279, 17, 5457, 7, 4077, 8, 2, 15