#[allow(dead_code)]
#[allow(unused_imports)]
fn read<T: std::str::FromStr>() -> T {
    use std::io::*;
    let stdin = stdin();
    let stdin = stdin.lock();
    let token: String = stdin
        .bytes()
        .map(|c| c.expect("failed to read char") as char)
        .skip_while(|c| c.is_whitespace())
        .take_while(|c| !c.is_whitespace())
        .collect();
    token.parse().ok().expect("failed to parse token")
}
fn main(){
    let a:i64 = read();
    let b:i64 = read();
    let c:i64 = read();
    let d:i64 = read();
    let dis = (a - c) * (a - c) - 4 * 2 * (b - d);
    if dis < 0 {
        println!("No");
    }else if dis == 0 {
        println!("Yes");
    }else{
        println!("{} {}",(a + c) / 2, (b + d) / 2);
    }
}