C312322331333132212111133133313331333131133113313331333131211113313112121111   >>    C31232233133313221211113313331333133313113311331333133313121111331311212111   <<    C312322331333132212111133133313331333131133113313331333131211113313112121113   >>      C312322331333132212111133133313331333131133113313331333131211113313112121112   >>