(define (System.out.println x)
  (begin
    (display x)
    (newline)
  )
)

(define N (read))
(define a (make-vector N))
(define b (make-vector 101))

(let loop(
          (i 0)
         )
  (if (< i N)
      (begin
        (vector-set! a i (read))
        (loop (+ i 1))
      )
      (let loop2(
                 (j 0)
                 (Max 0)
                 (foo (read))
                )
        (if (< j N)
            (begin
              (vector-set! b foo (+ (vector-ref a j) (vector-ref b foo)))
              (if (> (vector-ref b foo) Max)
                  (loop2 (+ j 1) foo (read))
                  (loop2 (+ j 1) Max (read))
              )
            )
            (if (or (= Max 0) (= (vector-ref b 0) (vector-ref b Max)))
                (System.out.println "YES")
                (System.out.println "NO")
            )
        )
      )
  )
)