C2221232323213331311331333133313231333132313232111131311331211211   >>    C222123232321333131133133313331323133313231323211113131133121121   <<    C2221232323213331311331333133313231333132313232111131311331211213   >>      C2221232323213331311331333133313231333132313232111131311331211212   >>