Problem: Stepping Space Removal

Code: Stepping+Space+Removal/tails_1645190195

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)

`. (iterate while uniq) 
    @ (= fstLine) 
    - (diff) <--arg( A ) 
        $ (= A) 
        " " (string)