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: ['K', 'U', '8245', 'I', 'C', '5815', '5163', '3535', 'h', 'J', 'k', 'i', '5525', 'y', 's', 'u']

SOLUTION: 11, 21, 8245, 9, 3, 5815, 5163, 3535, 8, 10, 11, 9, 5525, 25, 19, 21

PROBLEM: ['1795', 'T', 'a', 'H', '9335', '1591', 'G', 'd', 'O', '9877', '6467', 'R', 'd', '6417', '2957', '8941', 'd', 'V', '3935', '5783', '6473', '7095', '8963', '5827', '1229', '9067', '6593', '351', '3989', 'A', 'h', 'k', 'k', 'P', '8613', 'I', '2089', 'U', 'U']

SOLUTION: 1795, 20, 1, 8, 9335, 1591, 7, 4, 15, 9877, 6467, 18, 4, 6417, 2957, 8941, 4, 22, 3935, 5783, 6473, 7095, 8963, 5827, 1229, 9067, 6593, 351, 3989, 1, 8, 11, 11, 16, 8613, 9, 2089, 21, 21

PROBLEM: ['9427', 'e', '5481', '5403', 'Q', '7605', 'E', '4607', '1069', '1875', '9259', '5971', 'u', 'H', 'p', 'p', 'y', 'a', 'C', '6049', 'i', 'q', 'Y', '8187', '5207', 'g']

SOLUTION:
9427, 5, 5481, 5403, 17, 7605, 5, 4607, 1069, 1875, 9259, 5971, 21, 8, 16, 16, 25, 1, 3, 6049, 9, 17, 25, 8187, 5207, 7