C31232233133313221211113313331333133313113311331333133313113313232213233211331   >>    C3123223313331322121111331333133313331311331133133313331311331323221323321133   <<    C31232233133313221211113313331333133313113311331333133313113313232213233211333   >>      C31232233133313221211113313331333133313113311331333133313113313232213233211332   >>