public static void main(String[] args) throws IOException {
        int n = nextInt();
        long ans = 0;
        for (int i = 1; i < n + 1; i++) {
            String s = "" + i;
            if (s.contains("2") || s.contains("0") || s.contains("1") || s.contains("9")) {
                ans += i;
            }
        }
        out.print(ans);
        out.flush();
    }