let read () = Scanf.scanf "%d.%d.%d " (fun a b c -> a, b, c)

let base = 101

let () =
  let a, b, c = read () in
  let n = 2*base*a + base*b + c in
  let a, b, c = read () in
  let m = 2*base*a + base*b + c in
  print_endline (if m < n then "YES" else "NO")