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: ['G', '1627', 'P', 'D', 'p', '9311', 'I', '239', 'v', '2465', '8209', '793', '4509', '8181']

7, 1627, 16, 4, 16, 9311, 9, 239, 22, 2465, 8209, 793, 4509, 8181