C2221333133313331311233132313331333133313331311233132213232223311   >>    C222133313331333131123313231333133313331333131123313221323222331   <<    C2221333133313331311233132313331333133313331311233132213232223313   >>      C2221333133313331311233132313331333133313331311233132213232223312   >>