ABC214_A

ABC214_A.py

import sys
from fractions import gcd
from collections import Counter, deque, defaultdict
from heapq import heappush, heappop, heappushpop, heapify, heapreplace, merge
from bisect import bisect_left, bisect_right, bisect, insort_left, insort_right, insort
from itertools import accumulate, product, permutations, combinations
from operator import itemgetter
import math # math.inf
def input(): return sys.stdin.readline().rstrip()
def main():
    mod = 10**9 + 7
    
    n  =int(input())
    if n <= 125:
        print(4)
    elif n <= 211:
        print(6)
    else:
        print(8)
    
    
if __name__=='__main__':
    main()