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: ['i', '8447', '3611', '2793', 'Z', 'O', 'W', '3285']

9, 8447, 3611, 2793, 26, 15, 23, 3285