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 WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            switch (textBox1.Text)
            {
                case "黒":
                case "白":
                    MessageBox.Show("Good!");
                    break;
                default:
                    MessageBox.Show("ぬるぽ!が!");
                    break;
            }
        }
    }
}