using System;

public class Program

{

    public static void Main()

    {

        int date = 1;

        int day,month,year;

        Console.WriteLine("insert the date with 8 digits ");

        date = int.Parse (Console.ReadLine());

        year = date % 10000;

        Console.WriteLine("the year is {0}" , year);

        date = date/10000;

        month = date % 100;

        Console.WriteLine("the month is {0}" , month);

        date = date / 100;

        day = date % 100;

        Console.WriteLine("the day is {0}" , day);

        Console.WriteLine("{0}.{1}.{2}",day ,month,year);

        if(month>2 && month<6 ){

        Console.WriteLine("aviv");

        }

            if(month>5 && month<9 ){

        Console.WriteLine("summer");

        }

            if(month>8 && month<12){

        Console.WriteLine("stav");

        }

        if(month == 12 || month == 1 || month == 2 ){

        Console.WriteLine("winter");

        }

}

}