def suffix
import bend-collections@1.0.0.0/spec/crypto/chacha.bend as Chachaimport Base
137def suffix(n: Nat, xs: List<&2, U32>) -> List<&2, U32>:
138 match n xs:
139 case 0n _: xs
140 case 1n+p Nil{}: Nil{}
141 case 1n+p x <> rest: suffix(p, rest)