C2221333133313331311233132313331333133313331321123231333133323213211221   >>    C222133313331333131123313231333133313331333132112323133313332321321122   <<    C2221333133313331311233132313331333133313331321123231333133323213211223   >>      C2221333133313331311233132313331333133313331321123231333133323213211222   >>