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 <iostream>
#include <algorithm>
using namespace std;
typedef long long lli;

int main() {
  int n;
  while(cin >> n && n) {
    int cnt = 0;
    lli sum[4001];
    fill(sum, sum+4001, 0LL);
    for(int i = 0; i < n; ++i) {
      lli id, e, num;
      cin >> id >> e >> num;
      if(sum[id] != -1) {
        sum[id] += e * num;
        if(sum[id] >= 1000000LL) {
          ++cnt;
          sum[id] = -1;
          cout << id << endl;
        }
      }
    }
    if(!cnt) cout << "NA" << endl;
  }
  return 0;
}