time

import java.util.*;

public class time
{
     public static void main(String args[])
     {
            Scanner s = new Scanner(System.in);
            System.out.println("Enter Time in hours : ");
            int time = s.nextInt();

            if(time < 12 && time > 0)
            {
                System.out.println("Good Morning" );
            }
            else if( time < 18 && time >= 12)
            {
                System.out.println("Good Afternoon" );
            }
            else if( time < 24 && time >= 18)
            {
                System.out.println("Good Night" );
            }
            else{
                System.out.println("ERROR");
            }

         }

 }