#include <iostream>
#include <vector>
#include <string>
#include <algorithm>

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 _ = 0; _ < N; _++) {
        vector<string> strawberry;
        for (int _ = 0; _ < 4; _++) {
            string s; cin >> s;
            strawberry.push_back(s);
        }
        sort(strawberry.begin(), strawberry.end());

        if (amaou == strawberry) {
            ans++;
        }
    }

    cout << ans << "\n";
}