use std::io::*;

fn main() {
    let mut s: String = String::new();
    std::io::stdin().read_to_string(&mut s).ok();
    let mut itr = s.trim().split_whitespace();
    let a: i64 = itr.next().unwrap().parse().unwrap();
    let b: i64 = itr.next().unwrap().parse().unwrap();
    let mut c = a / b;
    let mut d = 0;
    while c >= 10 {
        d += 1;
        c /= 10;
    }
    for _ in 0..d {
        c *= 10;
    }
    if c < 1000 {
        println!("0");
    } else {
        println!("{}", c);
    }
}