C22212323232133313113313331333132313231333131211211323313213311221   >>    C2221232323213331311331333133313231323133313121121132331321331122   <<    C22212323232133313113313331333132313231333131211211323313213311223   >>      C22212323232133313113313331333132313231333131211211323313213311222   >>