use std::io;

fn get_number() -> u32 {
    let mut n = String::new();
    io::stdin().read_line(&mut n).unwrap();
    n.trim().parse().unwrap()
}

fn main() {
    let mut l = get_number();
    let mut m = get_number();
    let mut n = get_number();

    m += n / 25;
    n = n % 25;
    l += m / 4;
    m = m % 4;
    l = l % 10;

    println!("{}", l + m + n);
}