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: ['4633', '7655', '9119', '2179', 'I', '5613', '9457', 'y', '8711', '3469', '9439']

4633, 7655, 9119, 2179, 9, 5613, 9457, 25, 8711, 3469, 9439