#include<iostream>
using namespace std;
int main(){
  int n,h;
  while(cin>>n){
    if(n==0) break;
    h = 0;
    int b[n],p[n],q[n];
    for(int i=0;i<n;i++){
      cin >> b[i] >> p[i] >> q[i];
      for(int j=0;j<i;j++){
	if(b[j]==b[i]){
	  p[j] += p[i];
	  q[j] += q[i];
	  p[i] = 0;
	  q[i] = 0;
	  b[i] = 0;
	  break;
	}
      }
    }
    //for(int i=0;i<n;i++) cout << b[i] << ' ' << p[i] << ' ' << q[i] << endl;; 
    for(int i=0;i<n;i++){
      if(p[i]*q[i]>=1000000){
	cout << b[i] << endl;
	if(h==0) h = 1;
      }
    }
    if(h==0) cout << "NA" << endl;
  }
  return 0;
}