C111123313121111121111331333133313331333132232233131211111333131322331333233311   >>    C11112331312111112111133133313331333133313223223313121111133313132233133323331   <<    C111123313121111121111331333133313331333132232233131211111333131322331333233313   >>      C111123313121111121111331333133313331333132232233131211111333131322331333233312   >>