C1111233131211111211113313331333133313331333133313331333133313232331223131   >>    C111123313121111121111331333133313331333133313331333133313331323233122313   <<    C1111233131211111211113313331333133313331333133313331333133313232331223133   >>      C1111233131211111211113313331333133313331333133313331333133313232331223132   >>