Task: Program Execution
Input (English): 8, ['R', '1305', 'O', '5509', 'f', 'l', 'g', '3647', '8471', '1341', '4183', '3817', '4925', '7171', '2217', '1407', 'B', 'B', '3583']
Output (English): 8471, 1341, 4183, 3817, 4925, 7171, 2217, 1407, B, B, 3583