C2221333133313331311233132313331333133313111112111133133313113313232211   >>    C222133313331333131123313231333133313331311111211113313331311331323221   <<    C2221333133313331311233132313331333133313111112111133133313113313232213   >>      C2221333133313331311233132313331333133313111112111133133313113313232212   >>