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: ['K', 'X', 'y', 'J', 'm', '8263', 'r', 'G', 'q', 'a', 'D', 'L', 'p', 'W', 'T', '4429', 'k', 'a', 'X', '711', 'W', 'T', 'D', 'T', '5893', '1401', '9281', '5945', '907', 'P']

11, 24, 25, 10, 13, 8263, 18, 7, 17, 1, 4, 12, 16, 23, 20, 4429, 11, 1, 24, 711, 23, 20, 4, 20, 5893, 1401, 9281, 5945, 907, 16