#include<iostream>
#include<cstdio>
#include<algorithm>
#include<cmath>
#include<string>
#include<vector>
#include<list>
#include<set>
#include<map>
#include<queue>
#include<stack>
#include<cctype>
#include<climits>
#define ld long double
#define ll long long int
#define ull unsigned long long int
#define rep(i,n) for(i=0;i<n;i++)
#define fin(ans) cout<<(ans)<<endl
#define INF INT_MAX;
using namespace std;
template<class T> inline bool chmax(T& a,T b){if(a<b){a=b;return 1;}return 0;}
template<class T> inline bool chmin(T& a,T b){if(a>b){a=b;return 1;}return 0;}
const long long LLINF=1LL<<60;
//set<int>::iterator it;



int main(void){ios::sync_with_stdio(false);cin.tie(0);
//////////////////////////////////////////////////////
	
	int num[10]={0},i,n,a,b,c,d;
	cin>>n;
	string s;
	for(i=0;i<n;i++){
		cin>>a>>b>>c>>d;
		cin>>s;
		if(s=="YES"){
			num[a]++;
			num[b]++;
			num[c]++;
			num[d]++;
		}
		else{
			num[a]--;
		num[b]--;
		num[c]--;
		num[d]--;
		}
	}
	int max=-10000,maxi;
	for(i=0;i<10;i++){
		if(num[i]>max){
			maxi=i;
			max=num[i];
		}
	}
	cout<<maxi<<endl;
	
	
//////////////////////////////////////////////////////
	return 0;
}