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: ['2645', 'w', 'E', 'n', 'h', 'z', '607', 'X', 'q', '8295', 'q', 'X', '4323', 'b', '9373', 'p', 'p', 'n', 'W', '5935', 't', 'X', 'b', 'X', 'l', 'B', '2869', '6215', 'T', 'p', '9265', '5991', 'N', '7951', 'E', 'g', '3449', 'M', '7305']

2645, 23, 5, 14, 8, 26, 607, 24, 17, 8295, 17, 24, 4323, 2, 9373, 16, 16, 14, 23, 5935, 20, 24, 2, 24, 12, 2, 2869, 6215, 20, 16, 9265, 5991, 14, 7951, 5, 7, 3449, 13, 7305