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: ['6189', '7171', '4255', '3909', 'q', '245', '6569', '5797', 'x', '8395', '1465', 'I', 'E', 'b', 'J', 'e', '6285', 'A', 'b', '2155', '675', 'L']

6189, 7171, 4255, 3909, 17, 245, 6569, 5797, 24, 8395, 1465, 9, 5, 2, 10, 5, 6285, 1, 2, 2155, 675, 12