using System.Numerics;

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;


        if (num >= 3 && num <= 5)
        {
            Console.WriteLine("spring");
        }
        else if (num >= 6 && num <= 8)
        {
            Console.WriteLine("summer");
        }
        else if (num >= 9 && num <= 11)
        {
            Console.WriteLine("fall");
        }
        else
        {
            Console.WriteLine("winter");
        }
    }
}