using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace demo
{
class Program
{
static void Main(string[] args)
{
Console.WriteLine(1000);
Console.WriteLine(2000);
Console.WriteLine(3000);
Console.WriteLine(4000);
Console.WriteLine(5000);
Console.WriteLine(6000);
Console.ReadKey();
}
}
}