include [HTML_REMOVED]
using namespace std;
bool f(int n)
{
while(n)
{
if((n%10==9)||(n%10==0)||(n%10==1)||(n%10==2)) return true;
n/=10;
}
return false;
}
int main()
{
long long n,sum=0;
cin>>n;
for(int i=1;i<=n;++i)
{
if(f(i)) sum+=i;
}
cout<<sum<<endl;
}