using System;

//by Perlado Mikaela Ashley of BSIT 301                 

    public class Looping2

    {

        public static void Main()

        {

        int var1;

        int var2;

        int rows;

​

   Console.Write("Input number of rows : ");

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

    //looping statement     

   for(var1=1;var1<=rows;var1++)

        {

        for(var2=1; var2 <= var1; var2++)

            Console.Write("{0}",var1);

            Console.Write("\n");

        }

    }

}

​