C2221232323213331311331333133313331323132313331333112123122132113132333221   >>    C222123232321333131133133313331333132313231333133311212312213211313233322   <<    C2221232323213331311331333133313331323132313331333112123122132113132333223   >>      C2221232323213331311331333133313331323132313331333112123122132113132333222   >>