using System;

public class Program

{

    public static void Main()

    {

int [] vec=new int [1000];

int p=1000, s=0;

for(int i=0;i<=999;i++)

{

vec[i]=p-s;

s++;

Console.Write(vec[i]+"  ");

if (s%10==0 && s<1000)

Console.WriteLine("  ");

​

}

​

    }

}