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', 'h', 'O', 'x', 'O', '2651', '5011', '8271', '9565', '5323', '6315', 'A', '9417', 'C', '6409', 'C', 'T', 'K', 'o', 'O', '2627', 'Y']

SOLUTION: 14, 8, 15, 24, 15, 2651, 5011, 8271, 9565, 5323, 6315, 1, 9417, 3, 6409, 3, 20, 11, 15, 15, 2627, 25

PROBLEM: ['K', 'n', 'S', 'J', 'G', '129', '2153', '6095', '8267']

SOLUTION: 11, 14, 19, 10, 7, 129, 2153, 6095, 8267

PROBLEM: ['5001', '3109', 'W', '3535', '7621', 'r', 'f', 'D', '2227', 'g', '6571', 'R', '6395', '1335', 'd', '6617', 'C', '1073', '3327', '391', 'O', '9925', '4481', '1383', '9531', '2635', 'r', '7163', '4169', '449', 'J', 'f', '627', '1949', 'F']

SOLUTION:
5001, 3109, 23, 3535, 7621, 18, 6, 4, 2227, 7, 6571, 18, 6395, 1335, 4, 6617, 3, 1073, 3327, 391, 15, 9925, 4481, 1383, 9531, 2635, 18, 7163, 4169, 449, 10, 6, 627, 1949, 6