import java.util.*;

public class Main
{
	class TPoint
	{
		String x, y;

		public TPoint(String x,String y)
		{
			this.x = x;
			this.y = y;
		}
	}

	public static void main(String [] args)
	{
		new Main().run();
	}

	public void run()
	{
		Map <TPoint, Integer> map = new HashMap <TPoint, Integer> ();

		TPoint p = new TPoint ("0", "0");

		map.put(p, new Integer (1));

		System.out.println(map.containsKey(p));

		TPoint q = new TPoint ("0","0");

		System.out.println(map.containsKey(q));
	}
}