C31232233133313221211113313331333133313113311331333133313121111113313232331   >>    C3123223313331322121111331333133313331311331133133313331312111111331323233   <<    C31232233133313221211113313331333133313113311331333133313121111113313232333   >>      C31232233133313221211113313331333133313113311331333133313121111113313232332   >>