C312322331333132212111133133313331333133112111113232233133313231311331211   >>    C31232233133313221211113313331333133313311211111323223313331323131133121   <<    C312322331333132212111133133313331333133112111113232233133313231311331213   >>      C312322331333132212111133133313331333133112111113232233133313231311331212   >>