fn read_i32() -> i32{
    let mut line = String::new();
    std::io::stdin().read_line(&mut line).unwrap();
    line.trim().parse().unwrap()
}
fn main() {
    let l = read_i32();
    let m = read_i32() + l / 25;
    let n = read_i32() + m / 4;
    println!("{}", n % 10 + m % 4 + l % 25);
}