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: ['q', '4857', 'y', '1237', '6297', '8683', '7977', 'r', '5015', 'd', 'G', '2579', '9571']

SOLUTION: 17, 4857, 25, 1237, 6297, 8683, 7977, 18, 5015, 4, 7, 2579, 9571

PROBLEM: ['B', '625', '6887', '913', 'w', '4539', 'E', 'q', 'C']

SOLUTION: 2, 625, 6887, 913, 23, 4539, 5, 17, 3

PROBLEM: ['663', '9795', 'M', '3199', '225', 'Y', '3789', 'B', 'c', 'T', '4427', '8729', '7849', '4855', '8057']

SOLUTION:
663, 9795, 13, 3199, 225, 25, 3789, 2, 3, 20, 4427, 8729, 7849, 4855, 8057