C3123121111331311213331333131133133313331333133313331211113313231333132323111   >>    C312312111133131121333133313113313331333133313331333121111331323133313232311   <<    C3123121111331311213331333131133133313331333133313331211113313231333132323113   >>      C3123121111331311213331333131133133313331333133313331211113313231333132323112   >>