# code: http://golf.shinh.org/reveal.rb?integer+concatenation/tails_1645410035&nbb
# target Nibbles version: 0.23
# commenter version: 0.1.2.181

#(implicit map):[int] 
    >> #(tail):[[chr]] 
        ;;@ #(= allLines):[[chr]] 
    `/ #(special folds):int <--arg( B:[chr] A:[chr] ) 
        . #(map):[int] 
            ``p #(permutations):[[[chr]]] 
                % #(split (remove empties)):[[chr]] 
                    $ #(= B):[chr] 
                    ~ #(auto = words):auto 
            - #(subtract):int <--arg( C:[[chr]] ) 
                `r #(read int):int 
                    + #(concat):[chr] 
                        $ #(= C):[[chr]] 
                `r #(read int):int 
                    \ #(reverse):[chr] 
                        + #(concat):[chr] 
                            $ #(= C):[[chr]] 
        ] #(foldop: max):null