import java.util.SortedMap;
import java.util.TreeMap;


public class Test {

	public static void main(String[] args) {
		TreeMap<Integer,String> map  = new TreeMap<Integer,String>();
		map.put(1, "one");
		map.put(2, "two");
		map.put(3, "three");
		map.put(4, "four");
		SortedMap<Integer, String> smap1 = map.tailMap(2);
		SortedMap<Integer, String> smap2 = smap1.headMap(4);
		SortedMap<Integer, String> smap3 = smap2.subMap(2, 3);
		System.out.println(smap3);
	}
}
                                

A  {2=two, 3=three, 4=four}

B  {2=two, 3=three}

C  {2=two}

D  no output is printed