# code: http://golf.shinh.org/reveal.rb?checkers+pattern/tails_1642067881&nbb
# target Nibbles version: 0.21
# commenter version: 0.1.2.181

#(implicit map with implicit range):[[int]] 
    $ #(= fstInt):int 
    . #(map):[int] <--arg( B:int A:int ) 
        + #(add):[int] 
            $ #(= B):int 
            `, #(range from 0):[int] 
                ;_ #(= sndInt):int 
        % #(modulus):int <--arg( C:int ) 
            $ #(= C):int 
            ~ #(auto = 2):auto