C1111233131211111211113313231333133313331323331333133313232213331312131   >>    C111123313121111121111331323133313331333132333133313331323221333131213   <<    C1111233131211111211113313231333133313331323331333133313232213331312133   >>      C1111233131211111211113313231333133313331323331333133313232213331312132   >>