import java.util.*;

public class Main {
    public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		int n = scan.nextInt();
		if(n == 12 || n == 1 || n == 2){
			System.out.println("winter");
		}else if(n==3||n==4||n==5){
			System.out.println("spring");
		}else if(n==6||n==7||n==8){
			System.out.println("summer");
		}else{
			System.out.println("fall");
		}
    }
}