import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Scanner;

public class Main {
    private static List<String> amaouPattern = Arrays.asList("akai", "marui", "okii", "umai");
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int cnt = 0;
        for (int i = 0; i < n; i++) {
            List<String> strList = new ArrayList<>();
            for (int j = 0; j < 4; j++) {
                strList.add(sc.next());
            }
            Collections.sort(strList);
            if(strList.equals(amaouPattern)) cnt++;
        }
        System.out.println(cnt);
    }
}