using System;

public class ForLoopProgram

{

    public static void Main()

    {

        //this for loop is checked

        for(int i=1;i<=3;i++)

        {    

                //then this for loop is executed until condition is true

               //on each outer for loop run, this is executed completed again

                for(int j=1;j<=3;j++)

                {    

                    Console.WriteLine(i+" "+j);    

                }   

             Console.WriteLine("End of round "+i +" for outer loop");

        }    

    }

}