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', 'B', 'U', '9387']

SOLUTION: 17, 2, 21, 9387

PROBLEM: ['o', '8137', 'V', 'q', '2543']

SOLUTION: 15, 8137, 22, 17, 2543

PROBLEM: ['V', '4169', '9915', 't', '7275', 'B', '1893', '7007', '419', 'e', 'W', 'Z', 'J', '5919', '249', '361', 'h', '9063', '2097', 's', '23', '5191', 'I', '7619', '7665']

SOLUTION:
22, 4169, 9915, 20, 7275, 2, 1893, 7007, 419, 5, 23, 26, 10, 5919, 249, 361, 8, 9063, 2097, 19, 23, 5191, 9, 7619, 7665