# code: http://golf.shinh.org/reveal.rb?Updown+numbers/tails+%28darrenks%29_1646895581&nbb
# target Nibbles version: 0.25
# commenter version: 0.1.2.181

= #(subscript (wrapped)):[int] 
    40 #(integer):int 
    =~ #(group by (also sorts)):[[int]] 
        , #(range from 1):[int] 
            ^ #(pow):int 
                ~ #(auto = 10):auto 
                5 #(integer):int 
        ~ #(nosort):null 
        . #(map):[int] <--arg( A:int ) 
            `= #(chunk by):[[int]] 
                ! #(zip with):[int] 
                    ; #(save):[chr] -->let( B:[chr] ) 
                        `p #(int to str):[chr] 
                            $ #(= A):int 
                    >> #(tail):[chr] <--arg( C:chr ) 
                        @ #(= B):[chr] 
                    - #(zipop: sub):null 
                $ #(= D):int <--arg( D:int ) 
            / #(foldr1):int <--arg( E:[int] ) 
                #(implicit arg = E):[int] 
                #(implicit arg = G):int <--arg( G:int F:int )