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: ['1237', '635', 'C', '9551', '1211', 'q', '5487', 'd', '6527', '8987', '6149', '3223', 'p', 'B', '7355', '1631', 'A', '191', '1359', 'T', 'n', '7109', 'B', 'I', 'T', 'w']

1237, 635, 3, 9551, 1211, 17, 5487, 4, 6527, 8987, 6149, 3223, 16, 2, 7355, 1631, 1, 191, 1359, 20, 14, 7109, 2, 9, 20, 23