C2221232323213331311331333133313331323132313331333112123122132121111   >>    C222123232321333131133133313331333132313231333133311212312213212111   <<    C2221232323213331311331333133313331323132313331333112123122132121113   >>      C2221232323213331311331333133313331323132313331333112123122132121112   >>