#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
using ll = long long;
using ull = unsigned long long;
template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; }
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; }
const vector<int> dx = {0,0,1,-1};
const vector<int> dy = {1,-1,0,0};
const ll INF = 1e18;
const ll MOD = 998244353;

int main(){
    int n; 
    cin >> n;
    int ans = 0;
    vector<string> amao(4);
    amao[0] = "akai";
    amao[1] = "marui";
    amao[2] = "okii";
    amao[3] = "umai";
    for(int i = 0; i < n; i++){
        vector<string> ichi(4);
        for(int j = 0; j < 4; j++) cin >> ichi[j];
        sort(ichi.begin(),ichi.end());
        if(amao == ichi) ans++;
    }

    cout << ans << endl;
}