#coding: UTF-8

import sys
import re
import itertools
from collections import deque

### defs ###

### main ###
K = int(sys.stdin.readline())
prime = [2,3,5,7,11,13]
composite = [4,6,8,9,10,12]
cnt = [0]*201
for p in prime:
	for c in composite:
		cnt[p*c]+=1

print(cnt[K]/36)