C31232233133313221211113313331333133313331212111133133313331311331323133313211   >>    C3123223313331322121111331333133313331333121211113313331333131133132313331321   <<    C31232233133313221211113313331333133313331212111133133313331311331323133313213   >>      C31232233133313221211113313331333133313331212111133133313331311331323133313212   >>