C312322331333132212111133133313331333133323213331323132322232311   >>    C31232233133313221211113313331333133313332321333132313232223231   <<    C312322331333132212111133133313331333133323213331323132322232313   >>      C312322331333132212111133133313331333133323213331323132322232312   >>