C312322331333132212111133133313331333131133113313331333131231212121   >>    C31232233133313221211113313331333133313113311331333133313123121212   <<    C312322331333132212111133133313331333131133113313331333131231212123   >>      C312322331333132212111133133313331333131133113313331333131231212122   >>