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

int main(){
    int n;cin>>n;
    vector<vector<string>> s(n,vector<string>(4));
    int ans=0;
    vector<string> c={"akai","marui","okii","umai"};
    for(int i=0;i<n;i++){
        int fl=0;
        for(int j=0;j<4;j++){
            cin>>s[i][j];
            for(int k=0;k<4;k++){
                if(s[i][j]==c[k])fl+=(1<<k);
            }
        }
        if(fl==15)ans++;
    }
    cout<<ans<<"\n";
}