use proconio::{fastout, input};

#[fastout]
fn main() {
    input! {
        a: i64,
        b: i64,
    }
    println!("{}", output(solve(a, b)));
}

fn solve(mut a: i64, mut b: i64) -> String {
    let mut ans = String::new();
	if a != 0 && ((a >= 0) ^ (b >= 0)) {
		ans.push('-');
	}
	ans += &((a.abs() / b.abs()).to_string() + ".");
    a = (a.abs() % b.abs()) * 10;
	b = b.abs();
    for _ in 1..=100 {
        ans.push(char::from_digit((a.abs() / b.abs()) as u32, 10).unwrap());
        a = (a.abs() % b.abs()) * 10;
    }
    ans
}

fn output(ans: String) -> String {
    ans
}