using System;
using System.Linq;
using System.Collections.Generic;
using System.Text.RegularExpressions;


class Program
{
    static void Main()
    {
         int inputNumber = int.Parse(Console.ReadLine());
            
            if (inputNumber<=1)
            {
                Console.WriteLine((1).ToString());
                return;
            }

            string outputString = string.Empty;
            for(int i=0;i<inputNumber;++i)
            {
                for(int j=inputNumber;j>0;)
                {
                    outputString += (--j).ToString();
                }
            }
            
            Console.WriteLine(outputString);
            return;
    }
}