package New;
import java.util.StringTokenizer;
public class Prog16 {
      static String op;
      public static void abc(String str,
int start, int end) {
            StringBuffer
sb = new StringBuffer(str);
            sb.reverse();
            end
= start + end;
            op =
sb.substring(start, end);
      }
      public static void main(String[]
args) {
            String
str = "rajasthan";
            int start = 2;
            int len = 3;
            abc(str,
start, len);
            System.out.println(op);
      }
}