C21231322221311331311211312111133133331333133313331322331322331313221   >>    C2123132222131133131121131211113313333133313331333132233132233131322   <<    C21231322221311331311211312111133133331333133313331322331322331313223   >>      C21231322221311331311211312111133133331333133313331322331322331313222   >>