C312322331333132212111133133313331333133112112312111133112113121121   >>    C31232233133313221211113313331333133313311211231211113311211312112   <<    C312322331333132212111133133313331333133112112312111133112113121123   >>      C312322331333132212111133133313331333133112112312111133112113121122   >>