Task: Program Execution
Input (English): 6, 7, ['N', 'G', '4705', 'R', 'B', 'v', 'x', 'b', 'C', 'H', 's', 'Q', 'u', 'u', '9087', '4389', 'm', '6403', 'G', '9705', '5551', 'M', '3771']
Output (English): v, x