C11112331312111112111133133313331323132313232233132322331121231   >>    C1111233131211111211113313331333132313231323223313232233112123   <<    C11112331312111112111133133313331323132313232233132322331121233   >>      C11112331312111112111133133313331323132313232233132322331121232   >>