C111123313121111121111331323133313331333132333131133132213232311   >>    C11112331312111112111133132313331333133313233313113313221323231   <<    C111123313121111121111331323133313331333132333131133132213232313   >>      C111123313121111121111331323133313331333132333131133132213232312   >>