C111123313121111121111331333133313331312111113331333133313231333132323121   >>    C11112331312111112111133133313331333131211111333133313331323133313232312   <<    C111123313121111121111331333133313331312111113331333133313231333132323123   >>      C111123313121111121111331333133313331312111113331333133313231333132323122   >>