# code: http://golf.shinh.org/reveal.rb?Fill+Alternating+Layers/tails_1645286837&nbb
# target Nibbles version: 0.23
# commenter version: 0.1.2.181

#(implicit map):[chr] 
    `\ #(special scans):[[chr]] 
        @ #(= fstLine):[chr] 
        ; #(foldop: rev cons):null 
    ? #(if/else):chr <--arg( B:[chr] A:[chr] ) 
        / #(foldr1):chr 
            $ #(= B):[chr] 
            $ #(= D):chr <--arg( D:chr C:chr ) 
        $ #(= E):chr <--arg( E:chr ) 
        = #(subscript (wrapped)):chr 
            , #(length):int 
                | #(filter):[chr] 
                    $ #(= B):[chr] 
                    $ #(= F):chr <--arg( F:chr ) 
            "* " #(string):[chr]