fn run() {
    let mut s = String::new();
    std::io::stdin().read_line(&mut s).unwrap();
    let mut it = s.trim().split_whitespace();
    let a: i64 = it.next().unwrap().parse().unwrap();
    let b: i64 = it.next().unwrap().parse().unwrap();
    let c: i64 = it.next().unwrap().parse().unwrap();
    let d: i64 = it.next().unwrap().parse().unwrap();
    let det = (a - c).pow(2) - 4 * 2 * (b - d);
    if det < 0 {
        println!("No");
    } else if det == 0 {
        println!("Yes");
    } else {
        let f = |x: f64| -> f64 {
            x * x + a as f64 * x + b as f64
        };
        let det = (det as f64).sqrt();
        let p = (-(a - c) as f64 + det) / 4.0;
        let q = (-(a - c) as f64 - det) / 4.0;
        println!("{} {}", p, q);
        let fp = f(p);
        let fq = f(q);
        println!("{:.7} {:.7}", (fp - fq) / (p - q), fq - (fp - fq) / (p - q) * q);
    }
}

fn main() {
    run();
}