import java.io.*; import java.util.*; public class Main { static HashMap dp = new HashMap<>(); public static void main(String[] args) throws Exception { Scanner sc = new Scanner(); dp.put(0L, 1L); System.out.println(dfw(sc.nextLong())); } static long dfw(long x) { if (!dp.containsKey(x)) { dp.put(x, dfw(x / 5) + dfw(x / 3)); } return dp.get(x); } } class Scanner { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); StringTokenizer st = new StringTokenizer(""); public Scanner() throws Exception { } public int nextInt() throws Exception { return Integer.parseInt(next()); } public long nextLong() throws Exception { return Long.parseLong(next()); } public double nextDouble() throws Exception { return Double.parseDouble(next()); } public String next() throws Exception { while (!st.hasMoreTokens()) { st = new StringTokenizer(br.readLine()); } return st.nextToken(); } }