use std::io::{self, BufRead, BufReader, BufWriter, Write};

fn main() {
    let stdin = io::stdin();
    let mut stdin = BufReader::new(stdin.lock());
    let stdout = io::stdout();
    let mut stdout = BufWriter::new(stdout.lock());
    run(&mut stdin, &mut stdout);
}

fn run<R, W>(input: &mut R, output: &mut W)
where
    R: BufRead,
    W: Write,
{
    let mut buf = String::new();
    input.read_line(&mut buf).unwrap();
    let mut iter = buf
        .trim()
        .split_whitespace()
        .map(|s| s.parse::<u32>().unwrap());
    let s = iter.next().unwrap();
    let f = iter.next().unwrap();

    let answer = 1 + s / f;

    writeln!(output, "{}", answer).unwrap();
}