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(define (square x) (* x x))
(define (sum_square x y) (+ (square x) (square y)))
(define (solution x y z) (
cond
((and (<= x y) (<= x z)) (sum_square y z))
((and (<= y x) (<= y z)) (sum_square x z))
((and (<= z y) (<= z x)) (sum_square x y))
)
)