#include <bits/stdc++.h>
using namespace std;

int main() {
  int N, C = 0; cin >> N;
  string A = "akai", M = "marui", O = "okii", U = "umai";
  map<string, bool> mp;

  for (int i = 0; i < N; i++) {
    vector<string> S(4);
    cin >> S.at(0) >> S.at(1) >> S.at(2) >> S.at(3);
    mp[S.at(0)] = true;
    mp[S.at(1)] = true;
    mp[S.at(2)] = true;
    mp[S.at(3)] = true;
    if (mp[A] && mp[M] && mp[O] && mp[U]) C++;
    mp.clear();
  }

  cout << C << endl;
}