C11112331312111112111133133313331323132313232233133313123231333132311111   >>    C1111233131211111211113313331333132313231323223313331312323133313231111   <<    C11112331312111112111133133313331323132313232233133313123231333132311113   >>      C11112331312111112111133133313331323132313232233133313123231333132311112   >>