l1 = [3,4,5]
l2 = [6,7,8]
l3 = [9,10,11]
l4 = [12,1,2]

n = int(input())
if n in l1:
    print('spring')
elif n in l2:
    print('summer')
elif n in l3:
    print('fall')
elif n in l4:
    print('winter')