#include <iostream>
#include <vector>
#include <algorithm>
#include <array>
#include <iterator>
#include <string>
#include <cctype>
#include <cstring>
#include <cstdlib>
#include <cassert>
#include <cmath>
#include <ctime>
#include <iomanip>
#include <numeric>
#include <stack>
#include <queue>
#include <map>
#include <unordered_map>
#include <set>
#include <unordered_set>
#include <bitset>
#include <random>
#include <utility>
#include <functional>
using namespace std;
void Main()
{
	vector<string> A = {"akai","marui","okii","umai"};
	sort(A.begin(),A.end());
	int N;
	cin >> N;
	int ans = 0;
	for(int i = 0;i < N;i++)
	{
		vector<string> S(4);
		for(int j = 0;j < 4;j++)
		{
			cin >> S[j];
		}
		sort(S.begin(),S.end());
		if(A == S)
		{
			ans++;
		}
	}
	cout << ans << "\n";
}
int main()
{
	ios::sync_with_stdio(false);
	cin.tie(nullptr);
	int tt = 1;
	/* cin >> tt; */
	while(tt--) Main();
}