import java.io.*;
import java.util.*;

public class Main {
    public static void main(String[] args) {
     int five = Boolean.valueOf(true).compareTo(false) + Boolean.valueOf(true).compareTo(false) + Boolean.valueOf(true).compareTo(false) + Boolean.valueOf(true).compareTo(false) + Boolean.valueOf(true).compareTo(false);
         int base = NewP(Boolean.valueOf(true).compareTo( false ) + Boolean.valueOf(true).compareTo(false), Boolean.valueOf(true).compareTo(false) + Boolean.valueOf(true).compareTo(false) + Boolean.valueOf(true).compareTo(false) + Boolean.valueOf(true).compareTo(false) + Boolean.valueOf(true).compareTo(false));
         int ten = NewP(Boolean.valueOf(true).compareTo(false) + Boolean.valueOf(true).compareTo(false), Boolean.valueOf(true).compareTo(false) + Boolean.valueOf(true).compareTo(false) + Boolean.valueOf(true).compareTo(false)) + Boolean.valueOf(true).compareTo(false) + Boolean.valueOf(true).compareTo(false) + Boolean.valueOf(true).compareTo(false);
         int Hi = Boolean.valueOf(true).compareTo( false ) + (ten * five) + base - ten - Boolean.valueOf(true).compareTo(false);
         int ei = Boolean.valueOf(true).compareTo( false ) + (ten * ten);
         int li = (ten * ten) + five + five - Boolean.valueOf(true).compareTo(false) - Boolean.valueOf(true).compareTo(false);
         int oi = (ten * ten) + five + five + Boolean.valueOf(true).compareTo(false);
         int commai = base + five + five + Boolean.valueOf(true).compareTo(false) + Boolean.valueOf(true).compareTo(false);
         int SPACEi = base;
         int Wi = (ten * five) + base + five;
         int ri = (ten * ten) + five + five + five - Boolean.valueOf(true).compareTo(false);
         int di = (ten * ten);
         int exi = base + Boolean.valueOf(true).compareTo(false);
         String H = Character.toString((char) Hi);
         String e = Character.toString((char) ei);
         String l = Character.toString((char) li);
         String o = Character.toString((char) oi);
         String comma = Character.toString((char) commai);
         String SPACE = Character.toString((char) SPACEi);
         String W = Character.toString((char) Wi);
         String r = Character.toString((char) ri);
         String d = Character.toString((char) di);
         String ex = Character.toString((char) exi);
         
         
         
         System.out.println(H + e + l + l + o + comma + SPACE + W + o + r + l + d + ex);
     }
    
 public static int NewP(int x, int y){
  return (int)Math.exp(y*Math.log(x));
}
    
    
    
}