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");
}