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: ['U', 'C', '7173', 'r', 'Z', 'e', '4057', '5191', 'k', '73', '9335', '6143', '8871', '6023', '5765', 'O', '5379', '5269', '9935', 'K', 'V', '7561', 'j', 'R', 'o', '9207', 'F', '7169', '9941', 'm', 'J', '4203', 'k', 'B', 'G']

SOLUTION: 21, 3, 7173, 18, 26, 5, 4057, 5191, 11, 73, 9335, 6143, 8871, 6023, 5765, 15, 5379, 5269, 9935, 11, 22, 7561, 10, 18, 15, 9207, 6, 7169, 9941, 13, 10, 4203, 11, 2, 7

PROBLEM: ['B', 'z', '3345', 'n', 'E', '1329', 'c', 'G', 'n', '4519', 'J', 'r', 'C', 'C', 'y', 'g', 'm', 's', 'k', 'G', '4315', '8195', 'r', 'r', 'F', '5113', 'Y', '5907', 'L', '7943', 'D', '9443', 'b', 'Z', '8515', '179', 'M', 'u']

SOLUTION: 2, 26, 3345, 14, 5, 1329, 3, 7, 14, 4519, 10, 18, 3, 3, 25, 7, 13, 19, 11, 7, 4315, 8195, 18, 18, 6, 5113, 25, 5907, 12, 7943, 4, 9443, 2, 26, 8515, 179, 13, 21

PROBLEM: ['L', '6035', '4131', 'O', '3625', '8081', 'K', 'W', 'd', '3835', '111', 'E', '2049', 'K']

SOLUTION:
12, 6035, 4131, 15, 3625, 8081, 11, 23, 4, 3835, 111, 5, 2049, 11