P = [2,3,5,7,11,13]
G = [4,6,8,9,10,12]

li = list(set(p * g for p in P for g in G))
li.sort()
PG = [p * g for p in P for g in G]
PG.sort()
dic = {}

for i in li:
    dic[i] = PG.count(i)

K = int(input())

if K in dic:
    print(dic[K] / 36)
else:
    print(0)