C221213331323133112111133133313331322331311331333132333112312321   >>    C22121333132313311211113313331333132233131133133313233311231232   <<    C221213331323133112111133133313331322331311331333132333112312323   >>      C221213331323133112111133133313331322331311331333132333112312322   >>