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: ['X', 'V', 'H', '5913', 'L', '9757', 'N', 'i', 'h', 'v', 'K', 'J', 'z', 'V', '1605', 'c', '337', '1085', '3685', 'k', '8431', '6349', '4941', '4853', 'j', 'v', '5957', 'C']

24, 22, 8, 5913, 12, 9757, 14, 9, 8, 22, 11, 10, 26, 22, 1605, 3, 337, 1085, 3685, 11, 8431, 6349, 4941, 4853, 10, 22, 5957, 3