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;

typedef long long int lli;

lli employees[4001];
bool checked[4001];

signed main()
{
	lli n;
	while (cin >> n, n) {
		for (lli i = 1; i <= 4000; ++i) employees[i] = checked[i] = false;

		vector<lli> ans;

		for (lli i = 0; i < n; ++i) {
			lli num, a, b; cin >> num >> a >> b;

			if (checked[num]) continue;

			employees[num] += a * b;

			if (employees[num] >= 1000000) {
				ans.push_back(num);
				checked[num] = true;
			}
		}

		if (ans.size()) {
			for (lli i = 0; i < ans.size(); ++i) {
				cout << ans[i] << endl;
			}
		} else {
			cout << "NA" << endl;
		}
	}
}