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', 'W', '3875', 'Y', '9455', '7373', 'e', 'V', '6147', '7445', '3497', 'V', 'i', 'v', '8653', '3293', 'Z', 'c', '4681', 'V', '6675', 'Q', '1399', 'g', '359', 'D', '1337', '6561', '2893', '3549', 'K', 'D', '6777', 'Y', '1031']

9, 23, 3875, 25, 9455, 7373, 5, 22, 6147, 7445, 3497, 22, 9, 22, 8653, 3293, 26, 3, 4681, 22, 6675, 17, 1399, 7, 359, 4, 1337, 6561, 2893, 3549, 11, 4, 6777, 25, 1031