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', '5027', 'Y', 'T', 'C', '4927', 'l', '8571', 'y', 'j', 'r', '3479', 'y', '3717', '5755', '5025', 't', '4335', 'e', 'W', '5', '6039', 'q', '2061', '797', 'h', '9309', 'O', 'r', 'P', '8921', '4367', '5045']

24, 5027, 25, 20, 3, 4927, 12, 8571, 25, 10, 18, 3479, 25, 3717, 5755, 5025, 20, 4335, 5, 23, 5, 6039, 17, 2061, 797, 8, 9309, 15, 18, 16, 8921, 4367, 5045