#![allow(unused_imports, dead_code, unused_macros, unused_variables, non_snake_case, unused_parens)]
use std::cmp::{min,max,Ordering,Reverse};
use std::mem::swap;
use std::collections::{VecDeque,LinkedList,HashMap,BTreeMap,HashSet,BTreeSet,BinaryHeap};

const YES:&str="Yes";const NO:&str="No";#[inline]fn print_yesno(ans:bool){if ans{println!("{}",YES);}else{println!("{}",NO);}}


fn main() {
	let (x1,y1,x2,y2,x3): (i64,i64,i64,i64,i64) = {
		let mut line: String = String::new();
		std::io::stdin().read_line(&mut line).unwrap();
		let mut iter = line.split_whitespace();
		(
			iter.next().unwrap().parse().unwrap(),
			iter.next().unwrap().parse().unwrap(),
			iter.next().unwrap().parse().unwrap(),
			iter.next().unwrap().parse().unwrap(),
			iter.next().unwrap().parse().unwrap()
		)
	};
	print_yesno(y1==y2);
}