using System;

public class Program

{   static void Stairs(int n)

    {

      for (int i=1; i<=n; i++)

      {

        for (int j=i; j<n; j++)

        {

          Console.Write(" ");

        }

        for (int k=1; k<=i; k++)

        {

          Console.Write("#"+" ");

          //Console.Write("#");

        }

        Console.WriteLine();

      }

    } 

    public static void Main()

    { 

        Console.WriteLine("Write number of Stairs:");

        int arg = Int32.Parse(Console.ReadLine());

        Stairs(arg);

    }

}