Problem: swab

Code: swab/tails_1643247433

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)

+ (concat) 
    . (map) 
        `/ (chunks of) 
            ~ (auto = 2) 
            ;_ (= allInput) 
        \ (reverse) <--arg( A ) 
            (implicit arg = A)