#include <bits/stdc++.h>
#define FOR(i,a,b) for(int i=(a);i<(b);i++)
#define RFOR(i,a,b) for(int i=(b) - 1;i>=(a);i--)
#define REP(i,n) for(int i=0;i<(n);i++)
#define RREP(i,n) for(int i=n-1;i>=0;i--)

#define PB push_back
#define INF INT_MAX/3
#define ALL(a) (a).begin(),(a).end()
#define RALL(a) (a).rbegin(),(a).rend()
#define CLR(a) memset(a,0,sizeof(a))

typedef long long int ll;

using namespace std;

int main(){
    while(true){
	int n;
	cin >> n;
	vector< pair<int,int> > ms;
	if(n == 0) break;
	int c,m,s;
	REP(i,n){
	    cin >> c;
	    ms.PB( pair<int,int>(0,c) );
	    for(int j=0;j<4;j++){
		cin >> m >> s;
		ms[i].first += 60 * m + s;
	    }
	}
	sort(ALL(ms));
	cout << ms[0].second << endl;
	cout << ms[1].second << endl;
	cout << ms[ms.size()-2].second << endl;
    }
    return 0;
}