#include <stdio.h>
#include <atcoder/all>
#include <bits/stdc++.h>
using namespace std;
using namespace atcoder;
using mint = modint998244353;
#define rep(i,n) for (int i = 0; i < (n); ++i)
#define Inf32 1000000001
#define Inf64 1000000000000000001

int main(){
	
	ios::sync_with_stdio(false);
	std::cin.tie(nullptr);
	
	vector<string> t = {"akai","marui","okii","umai"};
	sort(t.begin(),t.end());
	int n;cin>>n;
	int ans = 0;
	rep(i,n){
		vector<string> s(4);
		rep(j,4)cin>>s[j];
		sort(s.begin(),s.end());
		if(s==t)ans++;
	}cout<<ans<<endl;
	
	return 0;
}