Problem: Alphabet
Code: Alphabet/tails_1686292439
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)
| (filter) @ (= fstLine) \ (char class) <--arg( A ) $ (= A) u (isUpper)