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 <vector>
#include <algorithm>
#include <iomanip>
#include <string>
#include <set>
#include <cmath>
#include <map>


int main(int,char**){
	typedef std::map<short,unsigned long long> Data;
	
	int n;
	while(std::cin>>n){
		if(!n) break;
		bool ex(0);
		Data tbl;
		std::vector<int> seq;
		while(n--){
			int Cnum,at,num;
			std::cin >>Cnum>>at>>num;
			if(tbl[Cnum]==0) seq.push_back(Cnum);
			tbl[Cnum]+=at*num;
		}
		for(std::vector<int>::const_iterator it=seq.begin();it!=seq.end();++it){
			if(tbl[*it]>=1000000){ std::cout<< *it << std::endl; ex=1;}
		}
		if(!ex) std::cout << "NA"<<std::endl;
	}

	return 0;
}