Problem: One char CAT
Code: One+char+CAT/tails_1644212990
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)
/ (foldr1):chr @ (= fstLine):[chr] (implicit arg = B):chr <--arg( B:chr A:chr )