C11111333133313232233133313331333133313331312111133133323112111   >>    C1111133313331323223313331333133313331333131211113313332311211   <<    C11111333133313232233133313331333133313331312111133133323112113   >>      C11111333133313232233133313331333133313331312111133133323112112   >>