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', '8651', '5609', 'y', '8091', '4165', 'Z', '1075', '5471', 'X', 'Q', '803', '2987', '1937', '3591', 'e', 'W', 'H', '2107', 'L', '2623', '1787', 'e']

24, 8651, 5609, 25, 8091, 4165, 26, 1075, 5471, 24, 17, 803, 2987, 1937, 3591, 5, 23, 8, 2107, 12, 2623, 1787, 5