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: ['o', 'y', 'C', 'L', '507', '7317', '2639', '6933', '797', '383', '4431', 'Z', 'y', '8811', 'O', 'a', 'G', 'Z', 'J', 'q', '1859', '9395', '8505', 'X', 'J', 'x', 'f', 'd', '2263', 'p', '5635', 'y', '9251', 'Z', 'K']

SOLUTION: 15, 25, 3, 12, 507, 7317, 2639, 6933, 797, 383, 4431, 26, 25, 8811, 15, 1, 7, 26, 10, 17, 1859, 9395, 8505, 24, 10, 24, 6, 4, 2263, 16, 5635, 25, 9251, 26, 11

PROBLEM: ['5319', 'G', '6901', '3897', 'D', '7909', 'x', '2723', '9683', 'k', '91', 'P', 'u', '5847', 'X', '2795', 'w', '9953', 'D', 'y', '1401', 'F', '8885', 'V', '7301', 'V', '9073', '7831', '1151', 'z', '1425', '2121', '1395', 't', 'W']

SOLUTION: 5319, 7, 6901, 3897, 4, 7909, 24, 2723, 9683, 11, 91, 16, 21, 5847, 24, 2795, 23, 9953, 4, 25, 1401, 6, 8885, 22, 7301, 22, 9073, 7831, 1151, 26, 1425, 2121, 1395, 20, 23

PROBLEM: ['U', '1589', 'A', 'I', 'e', 's', '5569', 'U', 'j', '5921', 'L', 'A', 'c', '4195', 'P', 'D', '2309', 'Q', '5461', 'G', 'z', '1989', '701', 'f', '1947', 'N', '5933', '7', '8329', 'v', '4003', '4563', '2355', '2561', 'H']

SOLUTION:
21, 1589, 1, 9, 5, 19, 5569, 21, 10, 5921, 12, 1, 3, 4195, 16, 4, 2309, 17, 5461, 7, 26, 1989, 701, 6, 1947, 14, 5933, 7, 8329, 22, 4003, 4563, 2355, 2561, 8