using System;

public class Program

{

    public static void Main()

    {

        double num1, num2, num3;

        Console.WriteLine("enter first number:");

        num1 = double.Parse(Console.ReadLine());

        Console.WriteLine("enter second number:");

        num2 = double.Parse(Console.ReadLine());

        Console.WriteLine("enter third number:");

        num3 = double.Parse(Console.ReadLine());

​

​

        //biggest number

        if (num1 > num2 && num1 > num3)

        {

            Console.WriteLine("biggest number is:" + num1);

        }

        else if (num2 > num1 && num2 > num3)

        {

            Console.WriteLine("biggest number is:" + num2);

        }

        else if (num3 > num1 && num3 > num2)

        {

            Console.WriteLine("biggest number is:" + num3);

        }

        //smallest number

        if (num1 < num2 && num1 < num3)

        {

            Console.WriteLine("smallest number is:" + num1);

        }

        else if (num2 < num1 && num2 < num3)

        {

            Console.WriteLine("smallest number is:" + num2);

        }

        else if (num3 < num1 && num3 < num2)

        {

            Console.WriteLine("smallest number is:" + num3);

        }

        //store numbers in order

​

​

​

​

​

​

​

​

​

​

​

    }

}