import java.util.HashMap;
import java.util.Comparator;

class Exam3 {
	public static void main(String[] args) {

		HashMap<Pair<Integer>, String> map = new HashMap<>();

		map.put(new Pair<Integer>(0,2), "blue");
		map.put(new Pair<Integer>(0,0), "red");
		map.put(new Pair<Integer>(0,1), "green");

		String value = map.get(new Pair<Integer>(0,1));
		System.out.println("value: " + value);


		map.values().stream().sorted(Comparator.naturalOrder())
			.forEach((elm) -> System.out.println(elm + " "));


	}
}