using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace Pool_Puzzle
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            String result = "";
            Echo e1 = new Echo();
            Echo e2 = new Echo();
            int x = 0;
            while (x < 4)
            {
                result = result + e1.Hello() + "\n";
                e1.count = e1.count + 1;
                if (x == 3)
                {
                    e2.count = e2.count + 1;
                }
                if (x > 0)
                {
                    e2.count = e2.count + e1.count;
                }
                x = x + 1;
            }
            MessageBox.Show(result + "Count: " + e2.count);
        }

        class Echo
        {
            public int count = 0;
            public string Hello()
            {
                return "helloooo...";
            }
        }
    }
}