#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
using ll = long long;

int N;
vector<string> K = {
    "akai",
    "marui",
    "okii",
    "umai",
};
int main(void){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    
    cin >> N;
    int ans = 0;
    sort(K.begin(), K.end());
    for(int i = 0;i < N;i++){
        vector<string> A;
        for(int j = 0;j < 4;j++){
            string s; cin >> s;
            A.push_back(s);
        }
        sort(A.begin(), A.end());
        if(A == K)ans++;
    }
    cout << ans << endl;
    return 0;
}