import java.util.Scanner;

public class Main {
  public static void log(Object obj) {
    System.out.println(obj.toString());
  }

  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int n = sc.nextInt();
    log(switch(n) {
      case 12,1,2 -> "winter";
      case 3,4,5 -> "spring";
      case 6,7,8 -> "summer";
      case 9,10,11 -> "fall";
      default -> "none";
    });
  }
}