C2221333133313331311233132313331333133313331322133313331311222333121   >>    C222133313331333131123313231333133313331333132213331333131122233312   <<    C2221333133313331311233132313331333133313331322133313331311222333123   >>      C2221333133313331311233132313331333133313331322133313331311222333122   >>