C2221232323213331311331333133313231333132313221323131211213232232311   >>    C222123232321333131133133313331323133313231322132313121121323223231   <<    C2221232323213331311331333133313231333132313221323131211213232232313   >>      C2221232323213331311331333133313231333132313221323131211213232232312   >>