C312322331333132212111133133313331333133323213331323132313232311231   >>    C31232233133313221211113313331333133313332321333132313231323231123   <<    C312322331333132212111133133313331333133323213331323132313232311233   >>      C312322331333132212111133133313331333133323213331323132313232311232   >>