Task: Program Execution
Input (English): 4, 3, ['9579', '2967', '1269', 'L', 'n', 'A', 'O', '9847', '8293', 'M', '969', '1695', '4553', '6543', 'R', '3379', '8121', 'y', 'Y', '4843', '3363']
Output (English): L, O, M, 4553, 3379, Y