C2221333133313331311233132313331333133313331322333121111331312313233313232121   >>    C222133313331333131123313231333133313331333132233312111133131231323331323212   <<    C2221333133313331311233132313331333133313331322333121111331312313233313232123   >>      C2221333133313331311233132313331333133313331322333121111331312313233313232122   >>