C111123313121111121111331333133313331312111113331333133313331333132322333123221   >>    C11112331312111112111133133313331333131211111333133313331333133313232233312322   <<    C111123313121111121111331333133313331312111113331333133313331333132322333123223   >>      C111123313121111121111331333133313331312111113331333133313331333132322333123222   >>