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: ['9387', '1369', '4901', '1105', 'T', '1237', '8005', '9677', 'B', 'o', 'T', '7317', 'K', '3989', 'w', 'c', '6475', 'X', 'r', 'w', '5171', 'D', 'n']

9387, 1369, 4901, 1105, 20, 1237, 8005, 9677, 2, 15, 20, 7317, 11, 3989, 23, 3, 6475, 24, 18, 23, 5171, 4, 14