using System;

public class Program

{

    public static void Main()

    {

         int n1, n2, min, par;

            Console.WriteLine(" enter a number");

            n1 = int.Parse(Console.ReadLine());

            Console.WriteLine(" enter a number");

            n2 = int.Parse(Console.ReadLine());

            min = Math.Min(n1, n2);

            for (int i = 0; i < 2; i++)

            {

                Console.WriteLine(" enter a number");

                n1 = int.Parse(Console.ReadLine());

                Console.WriteLine(" enter a number");

                n2 = int.Parse(Console.ReadLine());

                if (n1>n2)

                    if (min>n1)

                    {

                        min = Math.Min(n1, min);

                        par = i;

                    }

                 else

                    if (min>n2)

                    {

                        min = Math.Min(n2, min);

                        par = i;

                    }

​

            }

        Console.WriteLine(" the lowest number is "+min+" in "+par);

    }

}