#include<iostream>
using namespace std;
int main(){
  int n,h,h2;
  while(cin>>n){
    if(n==0) break;
    h = 0;
    int b[n],p[n],q[n],ansb[n],ans[n];
    for(int i=0;i<n;i++){
      cin >> b[i] >> p[i] >> q[i];
      h2 = 0;
      for(int j=0;j<i;j++){
	if(ansb[j]==b[i]){
	  ans[j] += p[i] * q[i]; 
	  ans[i] = 0;  
	  ansb[i] = 0;
	  h2 = 1;
	  break;
	}
      }
      if(h2==0){
	ans[i] = p[i] * q[i];
	ansb[i] = b[i];
      }
    } 
    for(int i=0;i<n;i++){
      if(ans[i]>=1000000){
	cout << ansb[i] << endl;
	if(h==0) h = 1;
      }
    }
    if(h==0) cout << "NA" << endl;
  }
  return 0;
}