# code: http://golf.shinh.org/reveal.rb?i+wrote+this+on+my+phone+at+the+airport/tails_1692193487&nbb
# target Nibbles version: 1.00
# commenter version: 0.1.2.181

+ #(add):int 
    `$ #(signum):int 
        - #(subtract):int 
            ~ #(auto = 1):auto 
            / #(divide):int 
                30 #(integer):int 
                `r #(read int):int 
                    @ #(= fstLine):[chr] 
    * #(multiply):int 
        % #(modulus):int 
            / #(foldr1):chr 
                @ #(= fstLine):[chr] 
                $ #(= B):chr <--arg( B:chr A:chr ) 
            4 #(integer):int 
        ~ #(auto = 2):auto