import java.io.*;
import java.util.*;
public class Cipher{
public String encode(String s, int n){
s.toLowerCase();
int a=Character.getNumericValue('a');
int z=Character.getNumericValue('z');
String result=new String();
for (int i=0;i<s.length();i++){
// if (s.charAt(i)>=a || s.charAt(i)<=z){
int x=Character.getNumericValue(s.charAt(i));
// System.out.println(x);
int y=x+n;
// System.out.println(y);
char c=Character.forDigit(y,16);
result=result+ (String)c;
// }
// else{
//result=result+s.charAt(i);
// }
}
return result;
}
}
//having some difficulties, will resolve later