C1111233133313231133133313331333133313231323331333133313221331121   >>    C111123313331323113313331333133313331323132333133313331322133112   <<    C1111233133313231133133313331333133313231323331333133313221331123   >>      C1111233133313231133133313331333133313231323331333133313221331122   >>