Problem: Duplicate characters

Code: Duplicate+characters/tails_1642045013

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)

+ . @ 
    ^ 2 
      $ 
"\n"