C111113331333132322331333133313331333133313121111331333121111331311331311212111   >>    C11111333133313232233133313331333133313331312111133133312111133131133131121211   <<    C111113331333132322331333133313331333133313121111331333121111331311331311212113   >>      C111113331333132322331333133313331333133313121111331333121111331311331311212112   >>