using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Enter number 1");

        int a = int.Parse(Console.ReadLine());

        Console.WriteLine("Enter number 2");

        int b = int.Parse(Console.ReadLine());

        Console.WriteLine("Enter number 3");

        int c = int.Parse(Console.ReadLine());

        if (a<b)//1

        {

            if(a<c)//2

            {

                if(b<c)//3

                    Console.WriteLine("The retsef is: "+a + " "+b + " "+c);

                else//3

                    Console.WriteLine("The retsef is: "+a + " "+c + " "+b);

            }

            else//2

                Console.WriteLine("The retsef is: "+c + " "+a + " "+b);

        }

        else //1

        {

            if (b<c)//4

            {

                if (a<c)//5

                    Console.WriteLine("The retsef is: "+b + " "+a + " "+c);

                else//5

                    Console.WriteLine("The retsef is: "+b + " "+c + " "+a);

            }           

            else//4

                Console.WriteLine("The retsef is: "+c + " "+b + " "+a);

        }

    }

}

​