C11111333133313232233133313331333133313332322331331121111121111113311211121   >>    C1111133313331323223313331333133313331333232233133112111112111111331121112   <<    C11111333133313232233133313331333133313332322331331121111121111113311211123   >>      C11111333133313232233133313331333133313332322331331121111121111113311211122   >>