import java.util.SortedMap;
import java.util.TreeMap;
public class MyClass {
public static void main(String args[]) {
SortedMap<Integer, String> smap = new TreeMap<Integer,String>();
smap.put(3, "java");
smap.put(5, "c");
smap.put(6, "c++");
smap.put(14, "c#");
smap.put(16, "go");
smap.put(19, "python");
smap.put(20, "javascript");
smap.put(22, "rust");
System.out.println(smap.subMap(14, 20));
}
}
/*
run:
{14=c#, 16=go, 19=python}
*/