// Numbers
//
import java.util.Scanner;

public class Program1
{
	public static void main(String[] args)
	{
		Scanner scan= new Scanner(System.in);
		
		System.out.print("Please enter a positive number: ");
		int n = scan.nextInt();
		
		for(int row=1; row<=n; row++)
		{
		  for(int col=1; col<=n-row+1; col++)
		  {
		  		System.out.print(col +"  ");
		  } 
		  System.out.println();
		}
	}
}