C2221232323213331311331333133313231323133313231123312311223331211   >>    C222123232321333131133133313331323132313331323112331231122333121   <<    C2221232323213331311331333133313231323133313231123312311223331213   >>      C2221232323213331311331333133313231323133313231123312311223331212   >>