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<bits/stdc++.h>
using namespace std;
#define int long long
const int N=4005,M=1000000;
signed main(void){
	int n;
	bool flag;
	int id[N],sum[N];
	map<int,int> Map; 
	ios::sync_with_stdio(false);
	while(cin>>n&&n){
		Map.clear();
		flag=true;
		memset(sum,0,sizeof(sum));
		for(int i=1,x,y;i<=n;i++){
			cin>>id[i]>>x>>y;
			if(!Map[id[i]])
				Map[id[i]]=i;
			sum[Map[id[i]]]+=x*y;
		}
		for(int i=1;i<=n;i++)
			if(sum[i]>=M){
				flag=false;
				cout<<id[i]<<endl;
			}
		if(flag)
			cout<<"NA"<<endl;
	}
}