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: ['H', '4841', 'B', '567', '3159', 'E', '3503', 'B', 'q', '1059', '7867', '2173', '9495', '8919', 'M', 'Q', '9019', 'h', '5783', 'B', '7381', '5713', '5897', 'K', 'f']

8, 4841, 2, 567, 3159, 5, 3503, 2, 17, 1059, 7867, 2173, 9495, 8919, 13, 17, 9019, 8, 5783, 2, 7381, 5713, 5897, 11, 6