MEANDRO PERCORSO: Esterno - Interno - (?) Esterno SEQUENZA CIRCONVOLUZIONI: - 5-10-7-8-9-6-11 - (1-2-3-4-11) x N - 5-10-7-8-9-6-11 - (4-3-2-1-11) x N - 5-10-7-8-9-6-11- 6-9-8-7-10-5-U