include[HTML_REMOVED]

using namespace std;
int main()
{

int n;
cin >> n;
int a,b,c,d;
int count=0;//计数
for(int i=1;i<=n;i++)
{
    int t=i;
    while(t)
    {
        int x=t%10; //得到个位数
        t/=10;
        if(x==0 ||x==1 ||x==2 ||x==9)
        {
            count+=i;
            break;
        }
    }
}
cout << count <<endl;
return 0;

}