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: ['n', 'h', 'O', 'x', 'O', '2651', '5011', '8271', '9565', '5323', '6315', 'A', '9417', 'C', '6409', 'C', 'T', 'K', 'o', 'O', '2627', 'Y']

14, 8, 15, 24, 15, 2651, 5011, 8271, 9565, 5323, 6315, 1, 9417, 3, 6409, 3, 20, 11, 15, 15, 2627, 25