# code: http://golf.shinh.org/reveal.rb?abbccc/tails_1678756069&nbb
# target Nibbles version: 1.00
# commenter version: 0.1.2.181

. #(map):[[chr]] 
    @ #(= fstLine):[chr] 
    ^ #(replicate):[chr] <--arg( A:chr ) 
        `^ #(bit xor):int 
            '`' #(char):chr 
            #(implicit arg = A):chr 
        #(implicit arg = A):chr