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: ['1979', '9217', '4309', '4071', 'w', 'P', '5303', 't', 'g', 'q', 'X', '9773', 'T', '2279', '1211', '9503', '5667', 'O', 'P', '3685', '2417']

SOLUTION: 1979, 9217, 4309, 4071, 23, 16, 5303, 20, 7, 17, 24, 9773, 20, 2279, 1211, 9503, 5667, 15, 16, 3685, 2417

PROBLEM: ['i', 'P', '227', '5575', 'O', 'l', '9041', 'q', '3695', '6189', 'x', 'z', 'R', '297', 'b', '5055', 'y', 'k', '4049', 'q', 'Z', '635', '5995', '2277', '6733']

SOLUTION: 9, 16, 227, 5575, 15, 12, 9041, 17, 3695, 6189, 24, 26, 18, 297, 2, 5055, 25, 11, 4049, 17, 26, 635, 5995, 2277, 6733

PROBLEM: ['j', 'Z', 'i', '3777', 'j', '9241', '8247', '6525', 'a', '3957', '8917', '1369', 'a', 'B', 'p', '7653', 'k', '235', 'p', 'C']

SOLUTION:
10, 26, 9, 3777, 10, 9241, 8247, 6525, 1, 3957, 8917, 1369, 1, 2, 16, 7653, 11, 235, 16, 3