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: ['3593', '3017', '527', '389', 'Y', 'y', 'V', '8293', '3351', 'U', '9379', 'M', 'C', 'J', 'k', '725', 'z', 'u', 'X', 'm', 'O', 'u', 'J', 'j', '4475', 'L', '5459', 'I', 'p', '7345', 'e', 'k', 'U', 'z', 'U']

3593, 3017, 527, 389, 25, 25, 22, 8293, 3351, 21, 9379, 13, 3, 10, 11, 725, 26, 21, 24, 13, 15, 21, 10, 10, 4475, 12, 5459, 9, 16, 7345, 5, 11, 21, 26, 21