Set: pp::colors
  Set: pp::unicode
  Imported 'int'
  Defined: revapp
-21
  Defined: revcomp
λ x : ℕ, 10 + 2 * (x + 1) * (x + 1)
  Defined: simple
simple : ℕ → ℕ
252
  Defined: simple2
simple2 : ℤ → ℤ
172