use std::io::stdin;

fn get_line() -> String {
    let mut line = String::new();
    stdin().read_line(&mut line).ok();
    line
}

fn main() {
    let line = get_line();
    let line: Vec<&str> = line.trim().split_whitespace().collect();
    let line: Vec<f32> = line.iter().map(|x| x.parse().unwrap()).collect();
    let s = line[0];
    let f = line[1];
    if s % f == 0.0 {
        println!("{}", s / f + 1.0);
    } else {
        println!("{}", (s / f).ceil());
    }
}