C312322331333132212111133133313331323132322331333133313222233121   >>    C31232233133313221211113313331333132313232233133313331322223312   <<    C312322331333132212111133133313331323132322331333133313222233123   >>      C312322331333132212111133133313331323132322331333133313222233122   >>