#include<iostream>
#include<vector>
using namespace std;

int main() {
	vector<int> emp_nums;
	vector<int> grades;
	
	while (true) {
		int n;
		cin >> n;
		if (n == 0)break;
		int e, p, q;
		for (int i = 0; i < n; i++) {
			cin >> e >> p >> q;
			bool be_already = false;
			int same_emp_index;
			for (int j = 0; j < emp_nums.size(); j++) {
				if (emp_nums[j] == e) {
					be_already = true; same_emp_index = j; break;
				}
			}
			if (be_already) {
				grades[same_emp_index] += p*q;
			}
			else {
				emp_nums.push_back(e);
				grades.push_back(p*q);
			}
		}
	}
	for (int i = 0; i < emp_nums.size(); i++) {
		if (grades[i] >= 1000000)cout << emp_nums[i] << endl;
		else cout << "NA" << endl;
	}
}
