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: ['2541', '5173', 'N', '6891', '8883', 'E', 'S', '561', '3705', 'v', 'e', 'l', 'S', 'Z', 'O', 'N', '5545', 'P', '7013', 'm', 'P', '3735', '2857', '8477', '3103', '3923', 'V', '7941', '5081', '1169', 'M', '3499', '6513', 'Q', '5381', 'D', '7725', '7895', 'w']

2541, 5173, 14, 6891, 8883, 5, 19, 561, 3705, 22, 5, 12, 19, 26, 15, 14, 5545, 16, 7013, 13, 16, 3735, 2857, 8477, 3103, 3923, 22, 7941, 5081, 1169, 13, 3499, 6513, 17, 5381, 4, 7725, 7895, 23