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: ['8581', 'M', '2185', 'n', '7', '3167', '1345', '1695', '2359', 'o', 'b', 'g', 'w', 'u', 'd', '1699', 'O', '1385', 'B', '5039', 'V', 'E', 'i', '223']

8581, 13, 2185, 14, 7, 3167, 1345, 1695, 2359, 15, 2, 7, 23, 21, 4, 1699, 15, 1385, 2, 5039, 22, 5, 9, 223