using System;

public class Program

{

    public static void Main()

    {

        staircase(10);

    }

​

    // Complete the staircase function below.

    static void staircase(int n) {

        // Find number of spaces needed 

        string space = "";    

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

            space += " ";

        }

​

        string hash = "#";

        for (int j = 0; j < n; j++) {             

            var tempSpace = space.Substring(0, space.Length - j);

            Console.Write($"space: {space.Length} | ");

            Console.Write($"tempSpace: {tempSpace.Length} | ");

            Console.Write(space + hash);

            Console.Write(Environment.NewLine);

            hash += "#";      

        }

​

    }

}