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: ['8683', 'k', 'a', '1081', '3617', '3697', '4097', 'v', 'A']

8683, 11, 1, 1081, 3617, 3697, 4097, 22, 1