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: ['7335', 'k', '185', '1915', '9207', '8403', '5189', 'A', 'C', 'y', 'K', '4631', 'i', '9233', '9149', 'x', '5641', 'x', 'Y', '2279', 's', '4005']

7335, 11, 185, 1915, 9207, 8403, 5189, 1, 3, 25, 11, 4631, 9, 9233, 9149, 24, 5641, 24, 25, 2279, 19, 4005