use std::io;

fn main() {
    let mut sf = String::new();
    io::stdin().read_line(&mut sf).unwrap();
    let sf: Vec<u32> = sf.trim()
        .split(' ')
        .filter_map(|s| s.parse().ok())
        .collect();

    println!("{}", sf[0] / sf[1] + 1);
}