C31232233133313221211113313331333133313113311331333133313121111131112121   >>    C3123223313331322121111331333133313331311331133133313331312111113111212   <<    C31232233133313221211113313331333133313113311331333133313121111131112123   >>      C31232233133313221211113313331333133313113311331333133313121111131112122   >>