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

int main(){
    int N;
    cin >> N;

    const vector<string> tar = {"akai", "marui", "okii", "umai"};
    int ans = 0;

    rep(i, 0, N){
        vector<string> S(4);
        rep(j, 0, 4) cin >> S[j];

        sort(S.begin(), S.end());
        bool flg = true;
        rep(j, 0, 4){
            if(S[j] != tar[j]){
                flg = false;
                break;
            }
        }

        if(flg) ans++;
    }

    cout << ans << endl;
    return 0;
}