C1111133313331323223313331333133313331323133313331311331333121111223213331   >>    C111113331333132322331333133313331333132313331333131133133312111122321333   <<    C1111133313331323223313331333133313331323133313331311331333121111223213333   >>      C1111133313331323223313331333133313331323133313331311331333121111223213332   >>