C2221333133313331311233132313331333133313331322133313331312233313221231   >>    C222133313331333131123313231333133313331333132213331333131223331322123   <<    C2221333133313331311233132313331333133313331322133313331312233313221233   >>      C2221333133313331311233132313331333133313331322133313331312233313221232   >>