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: ['t', 'u', 'H', 'y', 'A', 't', 'G', '3361', '8209', 'V', '4765']

SOLUTION: 20, 21, 8, 25, 1, 20, 7, 3361, 8209, 22, 4765

PROBLEM: ['155', '8891', 'F', 'T', 'C', '3477', 'L', 'l', '9191', '6815', 'c', 'M', '7365', '4757', '1439', 'B', 'Q', 'l', '4775', 'r', '7691', 'b', 'c', 'n', 'b', '4939', '1063', 'C', '1565', '3297', 'a', 'R', 'V', 'o']

SOLUTION: 155, 8891, 6, 20, 3, 3477, 12, 12, 9191, 6815, 3, 13, 7365, 4757, 1439, 2, 17, 12, 4775, 18, 7691, 2, 3, 14, 2, 4939, 1063, 3, 1565, 3297, 1, 18, 22, 15

PROBLEM: ['Y', '9267', 'Z', '6993', 'V', 'U', '3147', 'i', 'D', '4507', 'N', 'V', 'h', '5161', 'Q', 'C', 'b', '2813', '5873', 'K', '7819', 'y', 'e', '4547']

SOLUTION:
25, 9267, 26, 6993, 22, 21, 3147, 9, 4, 4507, 14, 22, 8, 5161, 17, 3, 2, 2813, 5873, 11, 7819, 25, 5, 4547