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: ['y', 'M', 'X', '6399', '8383', '4459']

SOLUTION: 25, 13, 24, 6399, 8383, 4459

PROBLEM: ['3003', 'N', 'w', 'E', 'c', '4319', '589', 'L', '1245', 'M', 'M', '267', 'B', '6095', '8243', 'P', '7477', 'X', '6205', '5989', 'y', 'S', 'x', '5989', 'V', 'm', 'L', '995', 'V', 'M', '5313']

SOLUTION: 3003, 14, 23, 5, 3, 4319, 589, 12, 1245, 13, 13, 267, 2, 6095, 8243, 16, 7477, 24, 6205, 5989, 25, 19, 24, 5989, 22, 13, 12, 995, 22, 13, 5313

PROBLEM: ['c', 'e', '8741', 'F', 'O', '407', '4435', '1887', 'O', '1193', '1821', '8135', '6717', 't', 'J', '6767', '639', 'q', '4145', '85', '3571', 'L', '2501', 'Y']

SOLUTION:
3, 5, 8741, 6, 15, 407, 4435, 1887, 15, 1193, 1821, 8135, 6717, 20, 10, 6767, 639, 17, 4145, 85, 3571, 12, 2501, 25