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: ['N', '9371', '3135', 'W', 'E', '4869', 'b', '6681', '3391', '4141', '6861', '7701', 'b', '8763', '3703', 'B', 'W', '8947', 'B', '7155', 'Y', 'y', 'z', 'K', 'Y', '6099', '3165', 'X', '3159', '1145', '5153', '7131', '4001', 'R', 'z', '5499', 'r', 'O', 'b', 'W']

SOLUTION: 14, 9371, 3135, 23, 5, 4869, 2, 6681, 3391, 4141, 6861, 7701, 2, 8763, 3703, 2, 23, 8947, 2, 7155, 25, 25, 26, 11, 25, 6099, 3165, 24, 3159, 1145, 5153, 7131, 4001, 18, 26, 5499, 18, 15, 2, 23

PROBLEM: ['9579', 'B', 'q', '181', '2955', 'q', 'I', 'L', 'g', '1357', '5797', '7917', 'd', '5745', '5591', '5687', 'a', '1219', 'd', '3849', 'z', '4695', 'j', '4133', '8689', 'r', 'W', 'I', 'p', '9971', '5525']

SOLUTION: 9579, 2, 17, 181, 2955, 17, 9, 12, 7, 1357, 5797, 7917, 4, 5745, 5591, 5687, 1, 1219, 4, 3849, 26, 4695, 10, 4133, 8689, 18, 23, 9, 16, 9971, 5525

PROBLEM: ['D', '9617', 'G', 'V', 'N', 'E', 'W', 'l', '6617', '673', '2895', '3951', 'q', '1727', 'm', '8581', '477', 'Q', '3261', '4813', 'e', 'a', 'c', '4117', '683', 'x', '5799', '9721', '6469', '2203', '8225']

SOLUTION:
4, 9617, 7, 22, 14, 5, 23, 12, 6617, 673, 2895, 3951, 17, 1727, 13, 8581, 477, 17, 3261, 4813, 5, 1, 3, 4117, 683, 24, 5799, 9721, 6469, 2203, 8225