# code: http://golf.shinh.org/reveal.rb?holey+rectangles/tails_1687395635&nbb
# target Nibbles version: 1.00
# commenter version: 0.1.2.181

= #(subscript (wrapped)):[[chr]] 
    5 #(integer):int 
    `. #(iterate while uniq):[[[chr]]] 
        ;@ #(= allLines):[[chr]] 
        . #(map):[[chr]] <--arg( A:[[chr]] ) 
            `' #(transpose):[[chr]] 
                \ #(reverse):[[chr]] 
                    $ #(= A):[[chr]] 
            : #(append):[chr] <--arg( B:[chr] ) 
                "#" #(string):[chr] 
                >> #(tail):[chr] 
                    #(implicit arg = B):[chr]