fn main() {
    let mut line = String::new();
    std::io::stdin().read_line(&mut line);
    let line: Vec<&str> = line.trim().split(" ").collect();
    let s: f64 = line[0].parse().unwrap();
    let f: f64 = line[1].parse().unwrap();
    println!("{}", ((s / f).floor() as i32) + 1);
}