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<stdio.h>
#include<map>
#include<algorithm>
using namespace std;
typedef pair<int,int> P;
long long s[4000];
P p[4000];
int min(int a,int b){return a<b?a:b;}
int main(){
	int n,i;
	while(1){
		scanf("%d",&n);
		if(n==0)return 0;
		for(i=0;i<4000;i++){
			s[i]=0;
			p[i].first=5000;
			p[i].second=i;
		}
		for(i=0;i<n;i++){
			int a,b,c;
			scanf("%d %d %d",&a,&b,&c);
			s[a-1]+=(long long)b*c;
			p[a-1].first=min(p[a-1].first,i);
		}
		sort(p,p+4000);
		bool f=true;
		for(i=0;i<4000;i++){
			if(p[i].first==5000)break;
			if(s[p[i].second]>=1000000){
				printf("%d\n",p[i].second+1);
				f=false;
			}
		}
		if(f)printf("NA\n");
	}
}