(define (sum_squares a b)
        (+ (* a a) (* b b)))
(define (kill_small x y z)
        (cond ((and (< x y) (< x z)) (sum_squares y z))
              ((and (< y x) (< y z)) (sum_squares x z))
              ((and (< z y) (< z x)) (sum_squares x y))))

(kill_small 5 2 1)