exercise 8

import java.util.*;
public class targil8
{
    static Scanner reader = new Scanner(System.in);

    /**
     * @param args
     */
    public static void main(String[] args)
    {
        int gr;
        System.out.println ("Enter your grade" );
        gr = reader.nextInt();
        if (gr<=100)
        {
            if (gr>=90)
            {
                System.out.println ("excellent");
            }

        }
        if (gr<=89)
        {
            if (gr>=80)
            {
                System.out.println ("good");
            }

        }
        if (gr<=79)
        {
            if (gr>=60)
            {
                System.out.println ("nice");
            }

        }
        if (gr<=59)
        {
            if (gr>=0)
            {
                System.out.println ("??");
            }

        }
        }
    }