#include <bits/stdc++.h>
using namespace std;
#define all(v) (v).begin(),(v).end()
#define pb(a) push_back(a)
#define rep(i, n) for(int i=0;i<n;i++)
#define foa(e, v) for(auto&& e : v)
using ll = long long;
const ll MOD7 = 1000000007, MOD998 = 998244353, INF = (1LL << 60);
#define dout(a) cout<<fixed<<setprecision(10)<<a<<endl;

int main() {
    cin.tie(0);
    ios::sync_with_stdio(false);
    vector<string> ans = {"akai", "marui", "okii", "umai"};
    int n;
    cin >> n;
    int sum = 0;
    rep(i, n) {
        vector<string> s(4);
        rep(j, 4) cin >> s[j];
        sort(all(s));
        if(s == ans) sum ++;
    }
    cout << sum << endl;
    return 0;
}