Scanner scanner = new Scanner(System.in);
int n = scanner.nextInt();
HashSet<String> set = new HashSet<>();
IntStream.range(1, n+1).forEach(i -> {
		set.add(Stream.of(scanner.next(), scanner.next())
				.sorted(String::compareTo)
				.collect(Collectors.joining(" ")));
System.out.println(set.size());
});
scanner.close();