public class Driver {
public static void main(String args[]){
Rot r = new Rot();
System.out.println(r.encode("hello",3));//khoor
System.out.println(r.encode("abcxyz",3));//defabc
System.out.println(r.encode("HELLO!@",3));//khoor!@
//char a = 'a';
// System.out.println((char)123);
}
}