using System.Globalization;

public class Program
{
    public static void Main()
    {
        int num = int.Parse(Console.ReadLine() ?? string.Empty);
        //string[] str = (Console.ReadLine() ?? string.Empty).Trim().Split(' ');
        //string str = Console.ReadLine() ?? string.Empty;

        Console.WriteLine(num);
        //double a = Math.Pow(2, num);

        //int b = (int)a-1;
        //int count = 0;
        //string h = Convert.ToString(b,2);
        //Console.WriteLine(h);
        //for(int i = 0;i< h.Length;i++)
        //{
        //    if (h[i] == '1')
        //    {
        //        count++;
        //    }
        //}
        //Console.WriteLine(count);
    }
}