def repl s
(s=~/\(.*?(\(.*)\)/?s.sub($1,(repl $1).to_s):s).scan(/\((.*?)\s(.*)\)/).flatten.pop.split.map(&:to_f).inject *(eval"[$1=~/[a-z]/,:#{$1}].compact")
end

repl"(print (+ 8 9))"
puts
p repl"(* 8 9 5 5 5 5)"
repl"(p (* 59 5 (* 4 (/ 10 6))))"

ほらしねよ　ゴミカス共