C11111333133313232233133313331333133313233213331323133313132323331121   >>    C1111133313331323223313331333133313331323321333132313331313232333112   <<    C11111333133313232233133313331333133313233213331323133313132323331123   >>      C11111333133313232233133313331333133313233213331323133313132323331122   >>