Task: Program Execution
Input (English): 9, 18, ['W', 'D', 'n', 'c', 'P', '6133', '4621', '4761', '5203', 'B', '8805', '3907', 'N', '9897', 'd', 'D', '9815', 'P', 'x', '3105', '3069', 'S', 'g']
Output (English): 5203B88053907N9897dD9815P