C1111233133313231133133313331333133313231323331333133313132111121   >>    C111123313331323113313331333133313331323132333133313331313211112   <<    C1111233133313231133133313331333133313231323331333133313132111123   >>      C1111233133313231133133313331333133313231323331333133313132111122   >>