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: ['y', '9613', 'S', 'Q', 'g', 'T', '73', 'Z', 'q', 'N', 'f', '4307', '1713', '5449', '5565', 'O', '3425', 'H', '5327', '4595', 'H', '2273']

25, 9613, 19, 17, 7, 20, 73, 26, 17, 14, 6, 4307, 1713, 5449, 5565, 15, 3425, 8, 5327, 4595, 8, 2273