using System;

public class Program

{

    public static void Main()

    {

        var rnd = new Random();

        int a;

        int b;

​

        for(int i = 0; i < 10; i++)

        {

            a = rnd.Next();

            b = a;

            a = 0;

            Console.WriteLine($"{a} {b}");

        }

    }

}