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

namespace week_4_Demo_1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void TextBox1_TextChanged(object sender, EventArgs e)
        {

        }

        private void Button1_Click(object sender, EventArgs e)
        {
            int limitation = Convert.ToInt32(textBox1.Text);
            int result = GetNumber(limitation);
            MessageBox.Show($" your number is {result}");

        }


        int GetNumber(int limit)
        {
            int currentNumber = 1;
            while (currentNumber <= limit)
            {
                currentNumber *= 2;
                //currentNumber = currentNumber * 2 ;
            }
            return currentNumber;

        }

    }
}