C312322331333132212111133133313331333131133113312111111211312121   >>    C31232233133313221211113313331333133313113311331211111121131212   <<    C312322331333132212111133133313331333131133113312111111211312123   >>      C312322331333132212111133133313331333131133113312111111211312122   >>