Problem: There is data on sales of your company. Your task is to write a program which identifies good workers.

The program should read a list of data where each item includes the employee ID i, the amount of sales q and the corresponding unit price p. Then, the program should print IDs of employees whose total sales proceeds (i.e. sum of p × q) is greater than or equal to 1,000,000 in the order of inputting. If there is no such employees, the program should print "NA". You can suppose that n < 4000, and each employee has an unique ID. The unit price p is less than or equal to 1,000,000 and the amount of sales q is less than or equal to 100,000.



Input

The input consists of several datasets. The input ends with a line including a single 0. Each dataset consists of:


n (the number of data in the list)
i p q
i p q
:
:
i p q


Output

For each dataset, print a list of employee IDs or a text "NA"

Example

Input

4
1001 2000 520
1002 1800 450
1003 1600 625
1001 200 1220
2
1001 100 3
1005 1000 100
2
2013 5000 100
2013 5000 100
0


Output

1001
1003
NA
2013

Solution (in CPP):

Solution:
#include <iostream>
#include <map>

using namespace std;

int main()
{
	for(int n;cin>>n,n;){
		map<int,pair<long long,int> > m; // id,price,appear
		for(int i=0;i<n;i++){
			int id,price,num;
			cin>>id>>price>>num;
			m[id].first+=(long long)price*num;
			if(m[id].second==0)
				m[id].second=i+1;
		}
		
		map<int,int> m2; // first,id
		for(map<int,pair<long long,int> >::iterator i=m.begin();i!=m.end();i++)
			if(i->second.first>=1000000)
				m2[i->second.second]=i->first;
		
		for(map<int,int>::iterator i=m2.begin();i!=m2.end();i++)
			cout<<i->second<<endl;
		if(m2.size()==0)
			cout<<"NA"<<endl;
	}
	
	return 0;
}