C2221333133313331311233132313331333133313331321123231333132333313231221   >>    C222133313331333131123313231333133313331333132112323133313233331323122   <<    C2221333133313331311233132313331333133313331321123231333132333313231223   >>      C2221333133313331311233132313331333133313331321123231333132333313231222   >>