C312322331333132212111133133313331333131133113313331333131211111133131212121   >>    C31232233133313221211113313331333133313113311331333133313121111113313121212   <<    C312322331333132212111133133313331333131133113313331333131211111133131212123   >>      C312322331333132212111133133313331333131133113313331333131211111133131212122   >>