import sys
#sys.setrecursionlimit(10 ** 6)
INF = float('inf')
MOD = 10**9 + 7
MOD2 = 998244353
from collections import defaultdict
def ceil(A,B):
    return -(-A//B)
def solve():
    def II(): return int(sys.stdin.readline())
    def LI(): return list(map(int, sys.stdin.readline().split()))
    def LC(): return list(input())
    def IC(): return [int(c) for c in input()]
    def MI(): return map(int, sys.stdin.readline().split())
    X = II()
    if(3<=X<=5):
    	print("spring")
    elif(6<=X<=8):
    	print("summer")
    elif(9<=X<=11):
    	print("fall")
    else:
    	print("winter")
    return
solve()