# code: http://golf.shinh.org/reveal.rb?Triangular+Text/tails_1646213751&nbb
# target Nibbles version: 0.24
# commenter version: 0.1.2.181

#(implicit map):[[chr]] 
    `= #(chunk by):[[chr,int]] 
        ! #(zip with):[chr,int] 
            | #(filter):[chr] 
                allInput #(;_):[chr] 
                \A 
                A #($):chr 
            \B 
            + #(concat):[int] 
                . #(map):[[int]] 
                    , #(range from 1):[int] 
                        ~ #(auto = infinity):auto 
                    \C 
                    ^ #(replicate):[int] 
                        C #($):int 
                        : #(append):[int] 
                            C #($):int 
                            ~ #(auto = []):auto 
            , #(zipop: make tuple):null 
        \E D 
        D #(@):int 
    \G F 
    . #(map):[chr] 
        #(implicit arg = G):[chr,int] 
        #\I H 
        #(implicit arg = I):chr