#include <bits/stdc++.h>
using namespace std;

int main()
{
    int N;
    cin >> N;
    vector<string> amaou = {"akai", "marui", "okii", "umai"};
    sort(amaou.begin(), amaou.end());
    int ans = 0;
    for (int i = 0; i < N; i++)
    {
        vector<string> check;
        for (int j = 0; j < 4; j++)
        {
            string S;
            cin >> S;
            check.push_back(S);
        }
        sort(check.begin(), check.end());
        if (amaou == check)
        {
            ans++;
        }
    }
    cout << ans;
}