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: ['447', 'X', '2761', 'R', 'x', 'V', 'g', '5625', 'J', '2471', 'O', 'D', '8853', 'h', '2875', '5369', 'F', 'G', '4643', '2837', 'n', '4031']

447, 24, 2761, 18, 24, 22, 7, 5625, 10, 2471, 15, 4, 8853, 8, 2875, 5369, 6, 7, 4643, 2837, 14, 4031