/************************************************
Grundlegende Algorithmen mit Java,
http://algorithmen-und-problemloesungen.de/
Copyright @2007-2008 by Doina Logofatu

in C#: Michael Gärtner
************************************************/

using System;
using System.IO;

namespace Logofatu
{
    class P4Tart2
    {
        private static String FileInputName = "torte.in";
        private static String FileOutputName = "torte.out";

        static void Main(string[] args)
        {
            StreamReader sr = null;
            StreamWriter sw = null;
            try
            {
                sr = new StreamReader(FileInputName);
                sw = new StreamWriter(FileOutputName);

                while ( !sr.EndOfStream )
                {
                    int n = int.Parse(sr.ReadLine());
                    sw.Write("{0,4:d} Schnitte -> {1,7:d} Stuecke!\n", n, 1 + n*(n+1)/2);
                }
            }
            catch ( IOException ex )
            {
                Console.WriteLine("Fehler bei der Dateiverarbeitung!\n" + ex);
            }
            finally
            {
                if ( sr != null )
                {
                    sr.Close();
                }
                if ( sw != null )
                {
                    sw.Close();
                }
            }
        }
    }
}