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: ['4245', '3997', 'T', 'N', 'q', '7057', '791', 't']

SOLUTION: 4245, 3997, 20, 14, 17, 7057, 791, 20

PROBLEM: ['7127', '6275', '9527', 'l', 'J', '6051', 'k', 'y', 'W', '3467', '4027', '9027', 'R', 'k', 'p', '7191', 'h', 'y']

SOLUTION: 7127, 6275, 9527, 12, 10, 6051, 11, 25, 23, 3467, 4027, 9027, 18, 11, 16, 7191, 8, 25

PROBLEM: ['9707', 'g', 'q', '5013', '4907', '9179', 'H', 'L', '8135', 'x', 'E', '4279', '9165']

SOLUTION:
9707, 7, 17, 5013, 4907, 9179, 8, 12, 8135, 24, 5, 4279, 9165