#include <vector>
#include <iostream>
#include <string>
#include <ostream>
#include <map>
#include <set>
#include <bitset>
#include <cmath>
#include <iomanip>
#include <algorithm>
#include <list>
#define rep(i, n) for (int i = 0; i < (n); i++)
using namespace std;

int main()
{
    int n;
    cin >> n;
    vector<string> s = {"akai", "marui", "okii", "umai"};
    int ans = 0;
    rep(i, n)
    {
        map<string, int> mp;
        rep(j, 4)
        {
            string t;
            cin >> t;
            mp[t]++;
        }
        bool flag = true;
        rep(j, 4)
        {
            if (mp[s[j]] == 0)
            {
                flag = false;
                break;
            }
        }if(flag)ans++;
    }cout << ans;
}