C31232233133313221211113313331333133313331212111133133313311213113311   >>    C3123223313331322121111331333133313331333121211113313331331121311331   <<    C31232233133313221211113313331333133313331212111133133313311213113313   >>      C31232233133313221211113313331333133313331212111133133313311213113312   >>