C31232233133313221211113313331333133313331212111133132321212121   >>    C3123223313331322121111331333133313331333121211113313232121212   <<    C31232233133313221211113313331333133313331212111133132321212123   >>      C31232233133313221211113313331333133313331212111133132321212122   >>