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: ['8175', '159', '6357', 'w', '5713', '5481', 'i', 'a', '1673', '6633', '3625', 'v', 'm', 'r', '2145', 'T', 'Y', '3025']

8175, 159, 6357, 23, 5713, 5481, 9, 1, 1673, 6633, 3625, 22, 13, 18, 2145, 20, 25, 3025