C31232233133313221211113313331333133313331212111133131311331313331   >>    C3123223313331322121111331333133313331333121211113313131133131333   <<    C31232233133313221211113313331333133313331212111133131311331313333   >>      C31232233133313221211113313331333133313331212111133131311331313332   >>