#include<bits/stdc++.h>
using namespace std;
int main(){
int i=1,n,a=0,b;
cin>>n;
while(i<=n)
{
b=i/1000+i/100%10+i/10%10+i%10;
i++;
if(b%2==0||b%5==0) continue;
a++;
}
cout<<a;
return 0;
}
/**************************************************************
	Problem: 1395
	User: BUDIN666
	Language: C++
	Result: Accepted
	Time:16 ms
	Memory:2072 kb
****************************************************************/