using System;

    public class Program

{

    public static void Main()

     {int mark = 68;

   if(mark>=0 && mark<=100) // 0-100

    {

        if(mark>=75)

    {

        Console.WriteLine("Pass - Distinction");

    }

     else if(mark>=60 && mark<=74)

    {

          Console.WriteLine("Pass - C");

    }

      else if(mark>=50 && mark<=59)

    {

          Console.WriteLine("Pass - B");

    }  

    }

    else

    {

         Console.WriteLine("Invalid mark...enter mark btn 0-100");

    }

          Console.WriteLine("End of program....");

    }

}