#ifdef LOCAL
#include <local.hpp>
#else
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,popcnt,lzcnt,abm,bmi,bmi2")
#include <bits/stdc++.h>
#define debug(...) ((void)0)
#define postprocess(...) ((void)0)
#endif

using namespace std;
using ll = long long;
using ld = long double;

void solve([[maybe_unused]] int test) {
    int N;
    cin >> N;

    int ans = 0;

    for (int i = 0; i < N; i++) {
        set<string> Sset;
        set<string> ansSet = {"akai", "marui", "okii", "umai"};
        for (int j = 0; j < 4; j++) {
            string S;
            cin >> S;
            Sset.insert(S);
        }
        if (Sset == ansSet) ans += 1;
    }

    cout << ans << endl;
}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    int t = 1;
    // cin >> t;
    for (int i = 1; i <= t; i++) {
        solve(i);
    }

    postprocess();
}