import sequtils, strutils

const
  x = [2, 3, 5, 7, 11, 13]
  y = [4, 6, 8, 9, 10, 12]

var cnt = 0.repeat 200.succ
for i in x:
  for j in y:
    inc cnt[i * j]

let k = parseInt readLine stdin

echo cnt[k] / 36