C312322331333132212111133133313331333133112112312111133112113113121   >>    C31232233133313221211113313331333133313311211231211113311211311312   <<    C312322331333132212111133133313331333133112112312111133112113113123   >>      C312322331333132212111133133313331333133112112312111133112113113122   >>