use proconio::input;

fn solve(){
    input! {
        x1: usize,
        y1: usize,
        x2: usize,
        y2: usize,
        x3: usize
    }


    if y1 == y2 {
        println!("Yes");
    }else{
        println!("No");
    }
}

fn main() {
    let mut i: usize = 1;
    
    while i != 0 {
        solve();
        i -= 1;
    }
}