#| BEGIN (Write your solution here) |#
(define (make-account balance correct-password)
  (let ((attempts 0))
    (define (withdraw amount)
      (if (>= balance amount)
          (begin (set! balance (- balance amount))
                 balance)
          "Insufficient funds"))
    (define (deposit amount)
      (set! balance (+ balance amount))
      balance)
    (define (call-the-cops)
      (error "Cops called"))
    (define (dispatch password m)
      (if (not (eq? password correct-password))
          (begin (set! attempts (+ attempts 1))
                 (if (> attempts 7)
                     (call-the-cops)
                     (error "Wrong password")))
          (begin (set! attempts 0)
                 (cond ((eq? m 'withdraw) withdraw)
                       ((eq? m 'deposit) deposit)
                       (else (error "Unknown request -- MAKE-ACCOUNT"
                                    m))))))
    dispatch))
#| END |#