#include<bits/stdc++.h>
using namespace std;
using ll = long long;
using ld = long double;
#ifdef LOCAL
#include <algo/debug.h>
#else
#define debug(...) void(0)
#endif
#include<atcoder/all>
using namespace atcoder;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    int N; cin >> N;
    set<string> S{"akai", "marui", "okii", "umai"};
    int ans = 0;
    while(N--) {
        set<string> T;
        for(int i = 0; i < 4; i++) {
            string t; cin >> t;
            T.emplace(t);
        }
        if(S == T) ans++;
    }
    cout << ans << endl;
}