Task: Program Execution
Input (English): 3, 9, ['v', '3177', 'B', 'G', '9219', 'H', 'n', '6795', '6233', 'j', 'w', 'J', 'z', '7133', 'G', '4073', '7117', 'r', 'M']
Output (English): B, J