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', '3237', 'H', '2623', 'z', '8309', 'W', '8249', 'c', '7019', '2073', 'G', 'H', 'i', '8293', '2617', 'a', 'H', 'c', 'D', 'E', 'G', 'e', 'u', 'D', '2845']

24, 3237, 8, 2623, 26, 8309, 23, 8249, 3, 7019, 2073, 7, 8, 9, 8293, 2617, 1, 8, 3, 4, 5, 7, 5, 21, 4, 2845