n = io.read("*n")
primes = {3, 5, 17, 257, 65537}
cnt = 0
for i = 0, 31 do
  itmp = i
  base = 1
  for j = 1, 5 do
    if(itmp % 2 == 1) then base = base * primes[j] end
    itmp = math.floor(itmp / 2)
  end
  while(base <= n) do
    if(3 <= base) then cnt = cnt + 1 end
    base = base * 2
  end
end
print(cnt)