# coding=utf-8
def divnum(a):
  mod = []
  div = 1
  while 1:
    tmp = div % a
    if tmp == 0:
      return len(mod)
    elif mod.count(tmp): break
    else:
      mod.append(tmp)
      div *= 10
  return len(mod) - mod.index(tmp)


def divnum1(a):
  while a % 2 == 0:
    a /= 2
  while a % 5 == 0:
    a /= 5
  j = 1
  while 1:
    tmp = int('9' * j)
    if tmp % a == 0:
      return str(tmp / a)
    j += 1



maxnum = [0, 0]
maxx = 1000
for i in xrange(1, maxx + 1):
  temp = divnum(i)
  #temp = len(divnum1(i))
  if temp > maxnum[1]:
    maxnum[0] = i
    maxnum[1] = temp

print maxnum