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: ['7385', '7029', '8005', 'S', 'z', 'D', 'o', '4673', '4161', 'G', 'v', '3269', '1233', 'U', 'j', 'M', 'b', '6079', '7549', '8175', '7591', 'l', 'y', 'm', 'L']

7385, 7029, 8005, 19, 26, 4, 15, 4673, 4161, 7, 22, 3269, 1233, 21, 10, 13, 2, 6079, 7549, 8175, 7591, 12, 25, 13, 12