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: ['K', '4665', '7541', '2649', '9007', '3267', '929', 'B', 'K']

SOLUTION: 11, 4665, 7541, 2649, 9007, 3267, 929, 2, 11

PROBLEM: ['9973', '4501', '3257', '7393', '2041', '1173', 'f', '3299', '1399', 'S', 'a', '7829', '2557', '6051', '7063', '2537', 'k', 'b', 'W', '9133', 'd']

SOLUTION: 9973, 4501, 3257, 7393, 2041, 1173, 6, 3299, 1399, 19, 1, 7829, 2557, 6051, 7063, 2537, 11, 2, 23, 9133, 4

PROBLEM: ['g', 'N', '3789', 'T', 'G', '1653', '6655', 'Y', '6493', 'R', '5137', '3525', '2243', '7879', 'u', 'j', 'G', '8039', '1229', 'W', '8999', 'L', 'l', 'i', '3727', 'W', 'V', '4833', 'R', '8159', '5833', 'e', 'q', 'i', '1451', 'K', '2959', '9397', 'e']

SOLUTION:
7, 14, 3789, 20, 7, 1653, 6655, 25, 6493, 18, 5137, 3525, 2243, 7879, 21, 10, 7, 8039, 1229, 23, 8999, 12, 12, 9, 3727, 23, 22, 4833, 18, 8159, 5833, 5, 17, 9, 1451, 11, 2959, 9397, 5