#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)

const set<string> ok = {"akai", "marui", "okii", "umai"};
void solve() {
  ll n;
  cin >> n;
  ll ans = 0;
  rep(i, n) {
    set<string> st;
    rep(_, 4) {
      string s;
      cin >> s;
      st.insert(s);
    }
    ans += st == ok;
  }
  cout << ans << '\n';
}

int main() {
  std::cin.tie(nullptr);
  std::ios_base::sync_with_stdio(false);
  int T = 1;
  for (int t = 0; t < T; t++) {
    solve();
  }
  return 0;
}