# code: http://golf.shinh.org/reveal.rb?Lower+ASCII+value/tails_1645664655&nbb
# target Nibbles version: 0.23
# commenter version: 0.1.2.181

#(implicit map):[chr] 
    `/ #(chunks of):[[chr]] 
        ~ #(auto = 2):auto 
        @ #(= fstLine):[chr] 
    / #(foldr1):chr <--arg( B:[chr] A:[chr] ) 
        `< #(sort):[chr] 
            $ #(= B):[chr] 
        #(implicit arg = D):chr <--arg( D:chr C:chr )