C2221333133313331311233132313331333133313232123313331333231333121121   >>    C222133313331333131123313231333133313331323212331333133323133312112   <<    C2221333133313331311233132313331333133313232123313331333231333121123   >>      C2221333133313331311233132313331333133313232123313331333231333121122   >>