using System;

public class Program

{

    public static void Main()

    {

            int r,i,k;

            Console.WriteLine("Enter rows:");

            r = Convert.ToInt32(Console.ReadLine());

        Console.Write("\n");

        if(r==1)

        {

         Console.Write("Pattern Cannot be formed");

        }

        else

        {

        for(i=r-1;i>=1;i--)

        {

            Console.WriteLine("1");

            if(i==1)

            {

                for(k=1;k<=r;k++)

                {

                 Console.Write("1");

                }

            }

        }

        }

    }

    }

​