use std::io::stdin;

fn main() {
    let mut s = String::new();
    stdin().read_line(&mut s).ok();
    let a = s.split_whitespace().map(|e| e.parse::<usize>().unwrap());
    let max = a.clone().max().unwrap();
    let others = a.sum::<usize>() - max;

    println!("{}", if max == others { "Yes" } else { "No" });
}
