use std::io;
fn main() {
    let v = input_strings();

    let s = v[0].parse::<i32>().unwrap();
    let t = v[1].parse::<i32>().unwrap();
    let result: bool;
    let c: &str = &v[2];
    match c {
        "<" => result = s < t,
        ">" => result = s > t,
        "=" => result = s == t,
        _ => result = false,
    }
    println!("{}", if result { "YES" } else { "NO" });
}
fn input_strings() -> Vec<String> {
    let mut s = String::new();
    io::stdin().read_line(&mut s).unwrap();
    let mut v = Vec::new();
    for n in s.split_whitespace() {
        v.push(String::from(n));
    }
    v
}