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: ['E', '275', '3661', '9793', 'x', 'd', 'p', 'P', 'b', '543', 'I', '7165', 'L', '6867', '4591', 'J', 'a', 'r', '2037', 'O', '2143', '6045', '5821', '4723']

SOLUTION: 5, 275, 3661, 9793, 24, 4, 16, 16, 2, 543, 9, 7165, 12, 6867, 4591, 10, 1, 18, 2037, 15, 2143, 6045, 5821, 4723

PROBLEM: ['c', 's', 'L', 'J', '7597', 'Z', '3517', 'F', '8053', 'J', 'N', 'H', 's', '2241', 'f', 'h', 'e', 'F', 'T', '5613', '425', 'k', '8125', '2457', '1269', 'p', 'b', '175']

SOLUTION: 3, 19, 12, 10, 7597, 26, 3517, 6, 8053, 10, 14, 8, 19, 2241, 6, 8, 5, 6, 20, 5613, 425, 11, 8125, 2457, 1269, 16, 2, 175

PROBLEM: ['6321', 'c', 't', '6153', 'A', '6563', '203', 'Q', 'C', '5935', '155', '8449', '2503', '1425', '3839', '7365', '3233', '8297', 'I', '6523', '6609', 'Z']

SOLUTION:
6321, 3, 20, 6153, 1, 6563, 203, 17, 3, 5935, 155, 8449, 2503, 1425, 3839, 7365, 3233, 8297, 9, 6523, 6609, 26