C2221232323213331311331333133313231323133313221213231211113112221   >>    C222123232321333131133133313331323132313331322121323121111311222   <<    C2221232323213331311331333133313231323133313221213231211113112223   >>      C2221232323213331311331333133313231323133313221213231211113112222   >>