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: ['7239', '3779', 'q', 'q', '1565', 'J', '2931', '6733']

7239, 3779, 17, 17, 1565, 10, 2931, 6733