use std::io::{self, Read};

fn read_stdin() -> Vec<String> {
    let mut buffer = String::new();
    io::stdin().read_to_string(&mut buffer).ok();
    buffer.trim().split('\n').map(|s| s.to_string()).collect()
}

fn main() {
    let input: Vec<usize> = read_stdin()[0].split(' ').map(|s| s.parse::<usize>().unwrap()).collect();
    let s = &input[0];
    let f = &input[1];
    println!("{}", s / f + 1);
}