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: ['4543', 'e', '9589', 'h', 'a', '3761', '3917', '5703', 'Y', '2331', 'o', '6267', 'o', '3555', '8543', '7181', '9155', '6607', '9017', 'X']

SOLUTION: 4543, 5, 9589, 8, 1, 3761, 3917, 5703, 25, 2331, 15, 6267, 15, 3555, 8543, 7181, 9155, 6607, 9017, 24

PROBLEM: ['C', 'M', 'H', '447', 'j', '8349', 'w', '5441', '2317', '3949', '119', 'Q', 'A', '9175', 'p', 'N', 'Y', 'b', '1281', 'R']

SOLUTION: 3, 13, 8, 447, 10, 8349, 23, 5441, 2317, 3949, 119, 17, 1, 9175, 16, 14, 25, 2, 1281, 18

PROBLEM: ['3419', 'i', 'f', '2395', '9599', '9005', 'I', '5671', '9359', 'V', '1395', '2623', 'h', '5335', 'T', '169', 'c', '2327', 'c']

SOLUTION:
3419, 9, 6, 2395, 9599, 9005, 9, 5671, 9359, 22, 1395, 2623, 8, 5335, 20, 169, 3, 2327, 3