C31232233133313221211113313331333133313331212111111331311331333132233132313121   >>    C3123223313331322121111331333133313331333121211111133131133133313223313231312   <<    C31232233133313221211113313331333133313331212111111331311331333132233132313123   >>      C31232233133313221211113313331333133313331212111111331311331333132233132313122   >>