using System;

namespace A_FourSeasons
{
    internal class Program
    {
        static void Main(string[] args) {
            int x = int.Parse(Console.ReadLine());
            string result = string.Empty;
            switch ((x) / 3) {
                case 0:
                case 4:
                    result = "winter";
                    break;
                case 1:
                    result = "spring";
                    break;
                case 2:
                    result = "summer";
                    break;
                case 3:
                    result = "fall";
                    break;
            }
            Console.WriteLine(result);
        }
    }
}