#include <iostream>
#include <vector>
#include <deque>
#include <unordered_map>
#include <string>
#include <sstream>
#include <cmath>
#include <cctype>

using namespace std;
int t, a, b, i;
int x = 0;
string words[4] = {};
string s;
int main(){
    cin >> t;
    while(t--){
        b = 0;
        fill_n(words, 4, 0);
        for(i=0; i < 4; i++){
            cin >> s;
            for(a=0; a<sizeof(s); a++){
                s[a] = tolower(s[a]);
            }
            words[i] = s;
        }
        for(i=0; i < 4; i++){
                if (words[i] == "akai"){
                    b++;
                    break;
                }
        }
        for(i=0; i < 4; i++){
            if (words[i] == "marui"){
                    b++;
                    break;
                }
        }
        for(i=0; i < 4; i++){
            if (words[i] == "okii"){
                    b++;
                    break;
                }
        }
        for(i=0; i < 4; i++){
            if (words[i] == "umai"){
                    b++;
                    break;
                }
        }
        if (b == 4){
            x++;
        }
    }
    cout << x;
}