C2221333133313331311233132313331333133313232123313331313231322331323121   >>    C222133313331333131123313231333133313331323212331333131323132233132312   <<    C2221333133313331311233132313331333133313232123313331313231322331323123   >>      C2221333133313331311233132313331333133313232123313331313231322331323122   >>