C2221333133313331311233132313331333133313131133133313331313232211223111   >>    C222133313331333131123313231333133313331313113313331333131323221122311   <<    C2221333133313331311233132313331333133313131133133313331313232211223113   >>      C2221333133313331311233132313331333133313131133133313331313232211223112   >>