# code: http://golf.shinh.org/reveal.rb?arrays+start+at+a/kaki_1735488735&nbb
# target Nibbles version: 1.00
# commenter version: 0.1.6.187

= #(subscript (wrapped)):chr 
    - #(subtract):int 
        / #(foldr1):chr 
            ; #(save):[chr] 
                | #(filter):[chr] 
                    fstLine #(@):[chr] 
                    \A 
                    \ #(char class):[chr] 
                        A #($):chr 
                        a #(isAlpha):null 
            sets B 
            \D C 
            C #(@):chr 
        '`' #(char):chr 
    #(implicit arg = B):[chr]