C11112331312111112111133133313331323132313232233133313223313111131   >>    C1111233131211111211113313331333132313231323223313331322331311113   <<    C11112331312111112111133133313331323132313232233133313223313111133   >>      C11112331312111112111133133313331323132313232233133313223313111132   >>