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>


int main(){
	int n;
	int id[4000],cid;
	long long int price,num,sale[4000];
	bool f;
	int i,j,idcount;
	while(scanf("%d",&n),n){

		f=true;
		idcount=0;

		for(i=0;i<n;i++){
			scanf("%d %lld %lld",&cid,&price,&num);

			for(j=0;j<idcount;j++){
				if(id[j]==cid){
					sale[j]=sale[j]+price*num;
				}
			}

			if(j==idcount){
				id[idcount]=cid;
				sale[idcount]=price*num;
				idcount++;
			}

		}



		for(i=0;i<idcount;i++){
			if(sale[i]>=1000000){
				printf("%d\n",id[i]);
				f=false;
			}
		}
		if(f!=false)printf("NA\n");
	}
	return 0;
}