import java.util.*;

public class Main {
	public static void main(String[] args) throws Exception {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		List<List<String>> list = new ArrayList<>();
		for (int i = 0; i < n; i++) {
			List<String> list2 = new ArrayList<>();
			for (int j = 0; j < 4; j++) {
				list2.add(sc.next());
			}
			list.add(list2);
		}
		sc.close();

		int ans = 0;
		for (int i = 0; i < n; i++) {
			List<String> list2 = list.get(i);
			if (list2.contains("akai") && list2.contains("marui") &&
					list2.contains("okii") && list2.contains("umai")) {
				ans++;
			}
		}
		System.out.println(ans);
	}
}