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: ['I', '4571', '8127', '9675', '9573', 'l', 'Z', '2297', '3223', 'N', '939', 'j', '9783', '9331', 'V', '8591', 'j', '5409', 'n', '8501', 'N', 'x', 'p', '4201', 'M', '1905', '8977', 'F', 'z', 'w', 'G']

9, 4571, 8127, 9675, 9573, 12, 26, 2297, 3223, 14, 939, 10, 9783, 9331, 22, 8591, 10, 5409, 14, 8501, 14, 24, 16, 4201, 13, 1905, 8977, 6, 26, 23, 7