C111113331333132322331333133313331333133313121111331333132313331333131331123111   >>    C11111333133313232233133313331333133313331312111133133313231333133313133112311   <<    C111113331333132322331333133313331333133313121111331333132313331333131331123113   >>      C111113331333132322331333133313331333133313121111331333132313331333131331123112   >>