题解 | #四季#

time = input()

# year = time[:4]
month = int(time[4:])

if 3 <= month <= 5:
    season = 'spring'

elif 6 <= month <= 8:
    season = 'summer'

elif 9 <= month <= 11:
    season = 'autumn'

else:
    season = 'winter'

print(season)