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: ['q', 'T', 'Z', '137', 'p', '1983', '6361', 'K', 'k', 'Q', 't', 'b', '3391', 't', 'J', 'u', 'd', '9593', 'u', '6843', '4817', '5997', 'M', 'q', 's', '4455', 'c', '731', '3277', 'B', 'B']

17, 20, 26, 137, 16, 1983, 6361, 11, 11, 17, 20, 2, 3391, 20, 10, 21, 4, 9593, 21, 6843, 4817, 5997, 13, 17, 19, 4455, 3, 731, 3277, 2, 2