fn main() {
    let mut xx = String::new();
    std::io::stdin().read_line(&mut xx).ok();
    let xx: Vec<u64> = xx.split_whitespace().flat_map(str::parse).collect();

    let answer: usize = xx
        .iter()
        .map(|&n| match (n % 3, n % 5) {
            (0, 0) => 8,
            (0, _) | (_, 0) => 4,
            _ => n.to_string().len(),
        })
        .sum();

    println!("{}", answer);
}