C2221333133313331311233132313331333133313232123313331333132213221311   >>    C222133313331333131123313231333133313331323212331333133313221322131   <<    C2221333133313331311233132313331333133313232123313331333132213221313   >>      C2221333133313331311233132313331333133313232123313331333132213221312   >>