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', '3167', '5241', '1277', 'M', '2989', '8277', '7311', '9787', '9647', '841', 'b']

17, 3167, 5241, 1277, 13, 2989, 8277, 7311, 9787, 9647, 841, 2