#include <bits/stdc++.h>
using namespace std;
const vector<string> amaou = {"akai", "marui", "okii", "umai"};
int main () {
    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 (S == amaou) ans++;
    }
    cout << ans << endl;
}