#include<iostream>
#include<string>
#include<algorithm>
#include<map>
#include<set>
#include<utility>
#include<vector>
#include<cmath>
#include<cstdio>
#define loop(i,a,b) for(int i=a;i<b;i++) 
#define rep(i,a) loop(i,0,a)
#define pb push_back
#define mp make_pair
#define it ::iterator
#define all(in) in.begin(),in.end()
const double PI=acos(-1);
const double ESP=1e-10;
using namespace std;
int main(){
  int n;
  while(cin>>n,n){
    map<int,int>in;
    vector<int>time;
    rep(i,n){
      int sum=0;
      int num;
      cin>>num;
      rep(i,4){
	int a,b;
	cin>>a>>b;
	sum+=a*60+b;
      }
      in[sum]=num;
      time.pb(sum);
    }
    sort(all(time));
    cout<<in[time[0]]<<endl<<in[time[1]]<<endl<<in[time[n-2]]<<endl;
  }
}