Problem: Simple Preprocessor

Code: Simple+Preprocessor/whio_1749166554

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 string concatenation) 
    (implicit string concatenation) 
        | (filter) 
            . (map) 
                ;@ (= sndLine) 
                - (subtract) <--arg( A ) 
                    ~ (auto = 1) 
                    $ (= A) 
            ~ (not) 
            (sorry, i don't understand this code. please report.) <--arg( B ) 
        "# " (string) 
    * (multiply) 
        (implicit arg = fstInt) 
        (implicit arg = fstInt)