C2221333133313331311233132313331333133313331322133313331312333221   >>    C222133313331333131123313231333133313331333132213331333131233322   <<    C2221333133313331311233132313331333133313331322133313331312333223   >>      C2221333133313331311233132313331333133313331322133313331312333222   >>