C31232233133313221211113313331311331333133313331323132212323221   >>    C3123223313331322121111331333131133133313331333132313221232322   <<    C31232233133313221211113313331311331333133313331323132212323223   >>      C31232233133313221211113313331311331333133313331323132212323222   >>