def rhs
import bend-collections@1.0.0.0/src/crypto/secp256k1/point.bend as Pointimport Base
import bend-collections@1.0.0.0/src/crypto/secp256k1/field.bend as F
158# x^3 + 7
159def rhs(+x: List<&2, Nat>) -> List<&2, Nat>:
160 F.add(F.mul(F.sq(x), x), F.small(7n))