using System;

public class Program

{

    public static void Main()

    {

        Double a;

            Console.Write("Enter Student Grade: ");

            a=Convert.ToDouble(Console.ReadLine());

    if (a >= 96 || a==100)

    {

            Console.Write( "Excellent : " + a);

    }

    else if (a >= 91 || a == 95)

    {

     Console.Write( "Very Satisfactory : " + a);

    }   

    else if (a >= 86 || a == 90)

    {

     Console.Write( "Satisfactory : " + a);

    }

    else if (a >= 81 || a == 85)

    {

     Console.Write("Unsatisfactory : " + a);

    }

    else if (a >= 75 || a == 80)

    {

     Console.Write( "Poor : " + a);

    }

    else if (a < 76)

    {

            Console.Write("Needs Improvement : " + a);

    }

    else 

    {

​

            Console.Write("Try Again");

    }

    }

}