# code: http://golf.shinh.org/reveal.rb?Twelve/darrenks_1642441177&nbb
# target Nibbles version: 0.21
# commenter version: 0.1.2.181

= #(subscript (wrapped)):[chr] 
    + #(add):int 
        + #(sum):int 
            ! #(zip with):[int] 
                >> #(tail):[chr] 
                    ; #(let):[chr] 
                        : #(append):[chr] 
                            `, #(range from 0):[int] 
                                10 #(integer):int 
                            "AB" #(string):[chr] 
                    sets A 
                \B 
                fstLine #(;$):[chr] 
                ? #(zipop: index):null 
        ~ #(auto = 1):auto 
    : #(append):[[chr]] 
        `' #(transpose):[[chr]] 
            A #($):[chr] 
        . #(map):[[chr]] 
            A #($):[chr] 
            \C 
            : #(append):[chr] 
                1 #(integer):int 
                #(implicit arg = C):chr