using System;

public class Program

{

    public static void Main()

    {

​

        int n=5;

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

        {

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

            {

                 Console.Write(" ");

            }

            int number = 1;

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

            {

                 Console.Write(" " + number);

                number = number * (i - c) / (c + 1);

            }

            Console.WriteLine("");

        }

    }

}