#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
  #include "settings/debug.cpp"
  #define _GLIBCXX_DEBUG
#else
  #define Debug(...) void(0)
#endif
#define rep(i, n) for (int i = 0; i < (n); ++i)
using ll = long long;
using ull = unsigned long long;

int main() {
  int n;
  cin >> n;
  map<set<string>, int> mp;
  rep(i, n) {
    set<string> s;
    rep(_, 4) {
      string str;
      cin >> str;
      s.insert(str);
    }
    mp[s]++;
  }
  set<string> ans = { "akai", "marui", "okii", "umai" };
  cout << mp[ans] << endl;
  return 0;
}