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

(define (calc sum n)
  (begin
    (display (- (/ sum 2) n))
    (display " ")
    (display (- n (- (/ sum 2) n)))
    (newline)
  )
)
  

(let (
      (N (read))
     )
  (let loop((foo (read)) (Sum 0))
    (if (eof-object? foo)
        (calc Sum N)
        (loop (read) (+ Sum foo))
    )
  )
)