C2221333133313331311233132313331333133313232123313331333131211113313223121   >>    C222133313331333131123313231333133313331323212331333133313121111331322312   <<    C2221333133313331311233132313331333133313232123313331333131211113313223123   >>      C2221333133313331311233132313331333133313232123313331333131211113313223122   >>