# code: http://golf.shinh.org/reveal.rb?Missing+Pieces/tails_1641624541&nbb
# target Nibbles version: 0.21
# commenter version: 0.1.2.181

- #(subtract):int 
    `/ #(special folds):int 
        . #(map):[int] 
            , #(range from 1):[int] 
                + #(sum):int 
                    ints #(_):[int] 
            \A 
            * #(multiply):int 
                ] #(max):int 
                    - #(subtract):int 
                        / #(divide):int 
                            + #(add):int 
                                fstInt #(@):int 
                                ~ #(auto = 1):auto 
                            ~ #(auto = 2):auto 
                        A #($):int 
                    + #(add):int 
                        / #(divide):int 
                            - #(subtract):int 
                                sndInt #(;@):int 
                                ~ #(auto = 1):auto 
                            A #($):int 
                        3 #(integer):int 
                + #(add):int 
                    2 #(integer):int 
                    A #($):int 
        [ #(foldop: min):null 
    + #(sum):int 
        ints #(_):[int]