C1111233131211111211113313331333133313331333133313331333133313232113322231   >>    C111123313121111121111331333133313331333133313331333133313331323211332223   <<    C1111233131211111211113313331333133313331333133313331333133313232113322233   >>      C1111233131211111211113313331333133313331333133313331333133313232113322232   >>