C2221232323213331311331333133313231333132313221323131211213232321   >>    C222123232321333131133133313331323133313231322132313121121323232   <<    C2221232323213331311331333133313231333132313221323131211213232323   >>      C2221232323213331311331333133313231333132313221323131211213232322   >>