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;

	while (1) {
		int x = 0, emp[4000] = {};

		scanf("%d", &n);
		if(n == 0) break;

		for (int i = 0; i < n; i++) {
			int e, p, q;
			scanf("%d %d %d", &e, &p, &q);

			emp[e] += p*q;

			if(emp[e] >= 1000000) {printf("%d\n", e); x = 1;}
		}

		if (x != 1) printf("NA\n");
	}

	return 0;
}