Task: Program Execution
Input (English): 8, ['A', '4557', '3653', '4983', '4983', 'B', '8961', 'u', '7351', 'R', '1901', 'o', '465', 'q', 'b', 'A', '7671', 'O', '831', 'I']
Output (English): A, 7351, 7671