#include<stdio.h>
#include<stdlib.h>
#include<math.h>

typedef long long int int64;

#define MAX(a,b) ((a)>(b)?(a):(b))
#define MIN(a,b) ((a)<(b)?(a):(b))
#define ABS(a) ((a)>(0)?(a):-(a))

const int m=1000000;
int64 *a=NULL;

int64 calc(int64 n){
  if(n<=m) return a[n];
  return calc(n/3)+calc(n/5);
}

void run(void){
  int64 n;
  scanf("%lld",&n);
  a=(int64 *)malloc(sizeof(int64)*(m+1));
  a[0]=1;
  int i;
  for(i=1;i<=m;i++) a[i]=a[i/3]+a[i/5];
  printf("%lld\n",calc(n));
}

int main(void){
  run();
  return 0;
}