C312322331333132212111133133313331333133112112312111133133311331123231   >>    C31232233133313221211113313331333133313311211231211113313331133112323   <<    C312322331333132212111133133313331333133112112312111133133311331123233   >>      C312322331333132212111133133313331333133112112312111133133311331123232   >>