Task: Program Execution
Input (English): 3, 6, ['209', 'O', 'O', 'o', 'T', 'h', '8765', 'D', 'R', 'l', 'f', 'O', '2941', '417', '8533', '7883', '3701', 'R', '507']
Output (English): O, R, 8533