#include <bits/stdc++.h>
using namespace std;
int main(){ 
    long long n,gs=0;
    int g,s,b,q,w,sw,bw,qw,y;
    cin>>n;
    for(int i=1;i<=n;i++){
    	g=i%10;
    	s=i/10%10;
    	b=i/100%10;
    	q=i/1000%10;
    	w=i/10000%10;
    	sw=i/100000%10;
    	bw=i/1000000%10;
    	qw=i/10000000%10;
    	y=i/100000000;
    	if(g+s+b+q+w+sw+bw+qw+y==13) gs++;
    }
    cout<<gs;
}
/**************************************************************
	Problem: 1511
	User: wangyiyang
	Language: C++
	Result: Accepted
	Time:118 ms
	Memory:2072 kb
****************************************************************/