C1111233131211111211113313331333133313331333133313331333133313331133123331   >>    C111123313121111121111331333133313331333133313331333133313331333113312333   <<    C1111233131211111211113313331333133313331333133313331333133313331133123333   >>      C1111233131211111211113313331333133313331333133313331333133313331133123332   >>