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: ['G', '4587', '4985', '8907', 's', 'W', 'G', 'G', '7681', '7185', 'D', 'q', '2729', '6673', 'i', '9171', 'e']

7, 4587, 4985, 8907, 19, 23, 7, 7, 7681, 7185, 4, 17, 2729, 6673, 9, 9171, 5