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: ['7609', '6193', 'w', '1699', 'N', 'h', '4673']

7609, 6193, 23, 1699, 14, 8, 4673