C1111133313331323223313331333133313331323133313331311331333121111223111   >>    C111113331333132322331333133313331333132313331333131133133312111122311   <<    C1111133313331323223313331333133313331323133313331311331333121111223113   >>      C1111133313331323223313331333133313331323133313331311331333121111223112   >>