using System;

public class Program

{

    public static void Main()

    {

        string [] part1;

        string [] part2;

        string helloWorld = "hello world, how is it going?";

        part1 = helloWorld.Split(',');

        part2 = helloWorld.Split(' ');

        foreach(string s in part1){

            Console.WriteLine(s);

        }

        foreach(string s in part2){

            Console.WriteLine(s);

        }

    }

}