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', 'm', '167', '521', '6385', 'P', '8757', 'k', '6385', '9617', 'W', 'K', '641', 'R', '4389', 'O', 'T', '7877', '5403', '5083', 'F', 't', '3663', 'X', 'e', 'P', '265', 'W', 'i', 'w', 'd', '7457', 'Z', '7047', 'j']

SOLUTION: 11, 13, 167, 521, 6385, 16, 8757, 11, 6385, 9617, 23, 11, 641, 18, 4389, 15, 20, 7877, 5403, 5083, 6, 20, 3663, 24, 5, 16, 265, 23, 9, 23, 4, 7457, 26, 7047, 10

PROBLEM: ['4727', 'n', '983', '3675', 't', 'm', '2595', 'x', '9987', '2031', 'D', 'b', 'F', 'T', '3903', '6289', 'u', 'Y', 'l', '393', 'W', '8499', '1557', '7057', 'D', '5287', '2629']

SOLUTION: 4727, 14, 983, 3675, 20, 13, 2595, 24, 9987, 2031, 4, 2, 6, 20, 3903, 6289, 21, 25, 12, 393, 23, 8499, 1557, 7057, 4, 5287, 2629

PROBLEM: ['O', 'R', '9909', 'w', 'A', '3721', '9899', '4153', '4095', 'X', '8285', 't', 'Y', 'u', 'Q', '1145', 'J', '7149', 'c', 'y', 'x', 'N', 'r', '2279', '8263', '9001', 'A', '5443', 'E', 'c', 'T']

SOLUTION:
15, 18, 9909, 23, 1, 3721, 9899, 4153, 4095, 24, 8285, 20, 25, 21, 17, 1145, 10, 7149, 3, 25, 24, 14, 18, 2279, 8263, 9001, 1, 5443, 5, 3, 20