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: ['4505', 'J', '5569', 'X', '4045', '4377', 'B', 'P', 's', '5743', '7513', 'b', '2771', '8129', 'q', 'n', 'I', '3991', '8015', '4399', 'L', 'B', 's', '1093', 'k', '2583', '7705', 'x', 'V', '6037', '2511', '8311', '6371', 'p', '287', 'K']

SOLUTION: 4505, 10, 5569, 24, 4045, 4377, 2, 16, 19, 5743, 7513, 2, 2771, 8129, 17, 14, 9, 3991, 8015, 4399, 12, 2, 19, 1093, 11, 2583, 7705, 24, 22, 6037, 2511, 8311, 6371, 16, 287, 11

PROBLEM: ['5209', 'd', 'C', 'x', '851', 'M', '8489', '9989', '6033', 'L', 'E', '9201', 'u', 'h', '1279', '9283', '9873', '259', '5015', '9735', 'R', 'J', '637', '4785', 'E', '4893', 'K', 'O']

SOLUTION: 5209, 4, 3, 24, 851, 13, 8489, 9989, 6033, 12, 5, 9201, 21, 8, 1279, 9283, 9873, 259, 5015, 9735, 18, 10, 637, 4785, 5, 4893, 11, 15

PROBLEM: ['1405', '4231', '8119', 'b', 'L', '3085', '5817', '5737', 'b', '7413']

SOLUTION:
1405, 4231, 8119, 2, 12, 3085, 5817, 5737, 2, 7413