struct S {
  v: i64
}


fn sum(n_orig: std::rc::Rc<S>) -> impl Fn(i64) -> i64
{
  let n = n_orig.clone();
  let res = move |x| {
    x + n.v
  };

  println!("N is {}", n_orig.v);

  res
}

fn main()
{
  let n = 1;
  let f = sum(std::rc::Rc::new(S{v:n}));
  let v = 5;

  println!("Add {} {} = {}", v, n, f(v))
}