C11111333133313232233133313331333133313233213331323131231211131   >>    C1111133313331323223313331333133313331323321333132313123121113   <<    C11111333133313232233133313331333133313233213331323131231211133   >>      C11111333133313232233133313331333133313233213331323131231211132   >>