Task: Program Execution
Input (English): 3, ['2231', '9019', 'D', '1863', 'l', 'c', '7155', '2835', 'U', 'I', 'N', 'R', 'o', 'g', 'q', '6087', 's', 'Z', '2143', '6401', 'V']
Output (English): 2231, 9019, D