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: ['8097', '2397', '1751', 'Z', '9643', 'G', 'p', '2757', '7167', '2477', '1711', '8131', '5115', '3177', '2503', 'S', '851', '5481', 'H', '3671']

8097, 2397, 1751, 26, 9643, 7, 16, 2757, 7167, 2477, 1711, 8131, 5115, 3177, 2503, 19, 851, 5481, 8, 3671