# 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):chr <--arg( A:chr ) 
            + #(concat):[int] <--arg( B:chr ) 
                . #(map):[[int]] 
                    , #(range from 1):[int] 
                        ~ #(auto = infinity):auto 
                    ^ #(replicate):[int] <--arg( C:int ) 
                        $ #(= C):int 
                        : #(append):[int] 
                            $ #(= C):int 
                            ~ #(auto = []):auto 
            , #(zipop: make tuple):null 
        @ #(= D):int <--arg( E:chr D:int ) 
    . #(map):[chr] <--arg( G:[chr,int] F:[chr,int] ) 
        #(implicit arg = G):[chr,int] 
        #(implicit arg = I):chr <--arg( I:chr H:int )