C312322331333132212111133133313331333131133113313331333131211111223111   >>    C31232233133313221211113313331333133313113311331333133313121111122311   <<    C312322331333132212111133133313331333131133113313331333131211111223113   >>      C312322331333132212111133133313331333131133113313331333131211111223112   >>