Task: Program Execution
Input (English): 6, ['O', '1447', '2471', '2265', '1999', '1971', '7023', '5215', 'I', '8163', 'H', '3381', 'y', 'K', '6027', '1965', 'w', '3127', 'k', 'Y']
Output (English): O, 7023, y, k