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: ['1171', '7585', 'H', 'R', '367', '4509', '9555', '9691', '8173', '6007', '2391', '4867', 't', 'l', '5127', 'W', '3795', 'p', '8375']

SOLUTION: 1171, 7585, 8, 18, 367, 4509, 9555, 9691, 8173, 6007, 2391, 4867, 20, 12, 5127, 23, 3795, 16, 8375

PROBLEM: ['3281', '6057', 'g', 'C', '5137', 'Q', 'N', 'n', '5121', '5599', '1281', '3473', 'q', '9141', 'v', 'Y', 'K', '2653', 'f']

SOLUTION: 3281, 6057, 7, 3, 5137, 17, 14, 14, 5121, 5599, 1281, 3473, 17, 9141, 22, 25, 11, 2653, 6

PROBLEM: ['j', 'u', '89', 'Q', '5067', '9523', '2291', 'm', '6057', 'P', '9537', 'S', '5291', '1403']

SOLUTION:
10, 21, 89, 17, 5067, 9523, 2291, 13, 6057, 16, 9537, 19, 5291, 1403