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: ['z', 'K', '2321', '5441', '5257', 'F', 't', '2973', '7263', '9205', '1085', '3879', '8297', '451', 'R', 'X', 'x', '9791', '9363', '2983']

SOLUTION: 26, 11, 2321, 5441, 5257, 6, 20, 2973, 7263, 9205, 1085, 3879, 8297, 451, 18, 24, 24, 9791, 9363, 2983

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: ['6829', 'o', '1685', 'v', '2241', '6759', '2551', '985', 'y', '3467', 'N', '3355', 'o', '2375', 'z', '1037', '5649', 'o']

SOLUTION:
6829, 15, 1685, 22, 2241, 6759, 2551, 985, 25, 3467, 14, 3355, 15, 2375, 26, 1037, 5649, 15