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 <utility>
#include <algorithm>
using namespace std;

int main()
{
	int n;
	while(cin>>n&&n)
	{
		unsigned long long v[4001]={};
		vector<int> id,ans;
		for(int i=0;i<n;i++)
		{
			unsigned long long a,b,c;
			cin>>a>>b>>c;
			id.push_back(a);
			v[a]+=b*c;
		}
		for(int i=0;i<=4000;i++)
		{
			if(v[i]>=1000000)ans.push_back(i);
		}
		bool ok=true;
		for(int i=0;i<id.size();i++)
		{
			if(binary_search(ans.begin(),ans.end(),id[i]))
			{
				auto it=lower_bound(ans.begin(),ans.end(),id[i]);
				ans.erase(it);
				cout<<id[i]<<endl;
				ok=false;
			}
		}
		if(ok)cout<<"NA"<<endl;
	}
}