#| BEGIN (Write your solution here) |#
(define (solution x y z)
  (- (+ (* x x) (* y y) ( * z z))(* (smallest x y z) (smallest x y z))
  )
    )

(define (smallest x y z)
  (cond ((and (<= x y) (<= x z)) x)
        ((and (<= y x) (<= y z)) y)
        ((and (<= z x) (<= z y)) z)
  ))

    
#| END |#