C312322331333132212111133133313331333131133113313331333131211111333112223121   >>    C31232233133313221211113313331333133313113311331333133313121111133311222312   <<    C312322331333132212111133133313331333131133113313331333131211111333112223123   >>      C312322331333132212111133133313331333131133113313331333131211111333112223122   >>