fn main() {
    println!("{}", if solve() { "Yes" } else { "No" });
}

fn solve() -> bool {
    let (n, x, y) = {
        let mut line = String::new();
        std::io::stdin().read_line(&mut line).unwrap();
        let mut iter = line.split_whitespace();
        (
            iter.next().unwrap().parse::<usize>().unwrap(),
            iter.next().unwrap().parse::<i64>().unwrap(),
            iter.next().unwrap().parse::<i64>().unwrap(),
        )
    };
    let rr = {
        let mut line = String::new();
        std::io::stdin().read_line(&mut line).unwrap();
        line.split_whitespace()
            .map(|x| x.parse::<i64>().unwrap())
            .collect::<Vec<_>>()
    };

    let sq_dist = x.pow(2) + y.pow(2);

    if n == 1 {
        return sq_dist == rr[0].pow(2);
    }

    let max_dist = rr[0] + 2 * rr.iter().skip(1).sum::<i64>();

    sq_dist / max_dist <= max_dist
}