TASK 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.
PROBLEM: ['b', 'o', 'E', '3349', '3065', '427', '635', 'r', 'L', '1955', '7645', '7123', 'E', '3781', 'L', 'O', '1255', 'R', '8671', 'k', 'n', '3199', '6251', '2839', 'L', 'X', 'h', '3479', 'R', 'O', '1289', '8729', '6665', '7729', 'I', '1639', 'Q']

SOLUTION: 2, 15, 5, 3349, 3065, 427, 635, 18, 12, 1955, 7645, 7123, 5, 3781, 12, 15, 1255, 18, 8671, 11, 14, 3199, 6251, 2839, 12, 24, 8, 3479, 18, 15, 1289, 8729, 6665, 7729, 9, 1639, 17

PROBLEM: ['j', 'u', '7291', 'i', '3329', 's', 'p', 'A', 'h', 'i', 'a', 's', '6987', '7169', 'T', 'K', 'C', '4991', 'A', 'A', 'h', '6997', 'h']

SOLUTION: 10, 21, 7291, 9, 3329, 19, 16, 1, 8, 9, 1, 19, 6987, 7169, 20, 11, 3, 4991, 1, 1, 8, 6997, 8

PROBLEM: ['6139', '1017', '9317', '1229', 'u', '4985', 'n', 'D', '8699', 'o', '9029', '4733', '4121', 'q', '3619', 'V', '2299', '9145', 'V']

SOLUTION:
6139, 1017, 9317, 1229, 21, 4985, 14, 4, 8699, 15, 9029, 4733, 4121, 17, 3619, 22, 2299, 9145, 22