Problem: Fill Alternating Layers

Code: Fill+Alternating+Layers/tails_1645286837

Nibbles version: 0.2 | 0.21 | 0.22 | 0.23 | 0.24 | 0.25 | 1.00

Format: Compact | Simple | +Type | Table | JSON | .nbl (DeBruijn) | .nbl (names)

(implicit map) 
    `\ (special scans) 
        @ (= fstLine) 
        ; (foldop: rev cons) 
    ? (if/else) <--arg( B A ) 
        / (foldr1) 
            $ (= B) 
            $ (= D) <--arg( D C ) 
        $ (= E) <--arg( E ) 
        = (subscript (wrapped)) 
            , (length) 
                | (filter) 
                    $ (= B) 
                    $ (= F) <--arg( F ) 
            "* " (string)