C221213331323133112111133133313331322331311331333133313231322333321   >>    C22121333132313311211113313331333132233131133133313331323132233332   <<    C221213331323133112111133133313331322331311331333133313231322333323   >>      C221213331323133112111133133313331322331311331333133313231322333322   >>