#include<iostream>
#include<cmath>
#include<cstring>
#include<algorithm>
using namespace std;
struct node{
	char s;
	int id,y,m,d;
};
node a[310];
int n;
bool cmp(node a,node b){
	return a.y>b.y||a.y==b.y&&a.m>b.m||a.y==b.y&&a.m==b.m&&a.d>b.d||a.id>b.id;
}
int main(){
	cin>>n;
	for(int i=0;i<n;i++){
		cin>>a[i].s>>a[i].y>>a[i].m>>a[i].d;
		a[i].id=i;
	}
	sort(a,a+n,cmp);
	for(int i=0;i<n;i++){
		cout<<a[i].s;
	}
	return 0;
}