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', 'A', 'B', '2283', 'n', '2457', '9187', '4257', 'm', '1595', 'x', '8853', 'A', '5705', 'T', '5307', 'r', '3135', '2095', '1875', '671', 'K', '5247', '9321', 'a', '4649', 'h', 'N']

7, 1, 2, 2283, 14, 2457, 9187, 4257, 13, 1595, 24, 8853, 1, 5705, 20, 5307, 18, 3135, 2095, 1875, 671, 11, 5247, 9321, 1, 4649, 8, 14