using System;

public class Program

{

    public static void Main()

    {

        int num1 = 79;

        int num2 = 80;

        int num3 = 25;

        int hingestNum = 0;

​

       if (num1 > num2) 

         if (num1 > num3)

         {

           hingestNum = num1;

          }

       else

        {

          hingestNum = num3;

          }

       else if (num2 > num3)

        {

          hingestNum = num2;

          }

        else 

           hingestNum = num3;

​

            Console.WriteLine ("The highest number is:" + hingestNum);

    }

}