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: ['Z', '5393', '9571', '4617', 'P', 'O', 'L', 'r', 'E', '1847', 'C', 'I', '2051', '2689', 'v', '2059', 'f', '8001', 'w', 'Z', '2375', '2239', '65', '2989', 'w', '2721', 'C', '9465', '4689', 'D', '2653', '4821', '1189', '3851', '6177', 'L', 'I']

26, 5393, 9571, 4617, 16, 15, 12, 18, 5, 1847, 3, 9, 2051, 2689, 22, 2059, 6, 8001, 23, 26, 2375, 2239, 65, 2989, 23, 2721, 3, 9465, 4689, 4, 2653, 4821, 1189, 3851, 6177, 12, 9