C1111133313331323223313331333133313331323133313331311331333121111222233111   >>    C111113331333132322331333133313331333132313331333131133133312111122223311   <<    C1111133313331323223313331333133313331323133313331311331333121111222233113   >>      C1111133313331323223313331333133313331323133313331311331333121111222233112   >>