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

int main(){
  int N;
  cin >> N;
  
  int ans = 0;
  while(N--){
    string S[4];
    for(auto &x : S) cin >> x;
    sort(S, S + 4);
    if(S[0] == "akai" && S[1] == "marui" && S[2] == "okii" && S[3] == "umai") ans++;
  }
  
  cout << ans << '\n';
}