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: ['Q', 'o', '8063', 'R', 'T', '8241', '1457', 'u']

SOLUTION: 17, 15, 8063, 18, 20, 8241, 1457, 21

PROBLEM: ['b', 'y', '2013', '5323', '889', '6257', '8113', '6951', '9563', '8935', '6437', 'S', '5973', '2609', '2855', 'J', 'Z', '629', '7687', '8481', '2673', 'B', 'S']

SOLUTION: 2, 25, 2013, 5323, 889, 6257, 8113, 6951, 9563, 8935, 6437, 19, 5973, 2609, 2855, 10, 26, 629, 7687, 8481, 2673, 2, 19

PROBLEM: ['2573', '1717', '3839', '5949', '6249', 'x', '4995', 'Y', 'L', 'W', '7635', 'u', 'U', 'P', 'O', '6795', '2527', '2441', 'D', 'W', '8759', 'p', 'q']

SOLUTION:
2573, 1717, 3839, 5949, 6249, 24, 4995, 25, 12, 23, 7635, 21, 21, 16, 15, 6795, 2527, 2441, 4, 23, 8759, 16, 17