use "collections"


actor Main
  new create(env: Env) =>
    let xs: List[U8] ref = List[U8]()
      .>push(1)
      .>push(2)
      .>push(10)
      .>push(3)
    env.out.print(" ".join(xs.values()))
    Sort[List[U8], U8](xs)
    env.out.print(" ".join(xs.values()))