fn main() {
    let mut s = String::new();
    std::io::stdin().read_line(&mut s).unwrap();
    let s = s.split_whitespace();
    let n: Vec<u8> = s.clone().flat_map(str::parse).collect();
    let ans = match s.last().unwrap() {
        ">" => n[0] > n[1],
        "<" => n[0] < n[1],
        _ => n[0] == n[1],
    };
    println!("{}", if ans { "YES" } else { "NO" });
}