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: ['Q', '8027', 's', '8587', '6715', 'o', '1515', 's', '1453', 'm', 'B', '7601', 'v', 'h', 'I', 'T', '4171']

17, 8027, 19, 8587, 6715, 15, 1515, 19, 1453, 13, 2, 7601, 22, 8, 9, 20, 4171