Problem: comma format

Code: comma+format/whio_1745242670

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)

* (join) 
    "," (string) 
    `/ (chunks of) 
        -3 (integer) 
        @ (= fstLine)