import java.io.*;
import java.util.*;
import java.util.function.*;
import java.util.stream.*;

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner();
        String[] AMAO = new String[]{"akai", "marui", "okii", "umai"};
        int n = sc.nextInt();
        int ans = 0;
        while (n-- > 0) {
            String[] current = new String[4];
            for (int i = 0; i < 4; i++) {
                current[i] = sc.next();
            }
            Arrays.sort(current);
            boolean enable = true;
            for (int i = 0; i < 4 && enable; i++) {
                enable = current[i].equals(AMAO[i]);
            }
            if (enable) {
                ans++;
            }
        }
        System.out.println(ans);
    }
}
class Scanner {
    BufferedReader br;
    StringTokenizer st = new StringTokenizer("");
    StringBuilder sb = new StringBuilder();
    
    public Scanner() {
        try {
            br = new BufferedReader(new InputStreamReader(System.in));
        } catch (Exception e) {
            
        }
    }
    
    public int nextInt() {
        return Integer.parseInt(next());
    }
    
    public long nextLong() {
        return Long.parseLong(next());
    }
    
    public double nextDouble() {
        return Double.parseDouble(next());
    }
    
    public String next() {
        try {
            while (!st.hasMoreTokens()) {
                st = new StringTokenizer(br.readLine());
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            return st.nextToken();
        }
    }
    
}