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: ['9547', 'E', 'q', '4295', '8307', 'N', '4003', 'Q']

9547, 5, 17, 4295, 8307, 14, 4003, 17