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: ['v', 'o', 'x', '4567', 'j', '3415', 'b', 'K', '4115', 's', 'X', '7293', '4541', 's', '8547', '4653', 'e', 'C', '3081', 'a', '2459']

22, 15, 24, 4567, 10, 3415, 2, 11, 4115, 19, 24, 7293, 4541, 19, 8547, 4653, 5, 3, 3081, 1, 2459