from collections import *
from itertools import *
from functools import *
from heapq import *
import sys,math
input = sys.stdin.readline

X = int(input())
if X in [3,4,5]:
    print('spring')
elif X in [6,7,8]:
    print('summer')
elif X in [9,10,11]:
    print('fall')
else:
    print('winter')