#include<iostream>
#include<cstdio>
using namespace std;
typedef struct result{
 long long int nam;
 long long int mon;
 long long int cont;
 long long int sum;
}P;
int main(){
  P a[4001];
  int n,nacount;
  while(1){
    cin >> n;
    nacount=0;
    if(n==0){break;}
    for(int i=0;i<n;i++){
      cin>>a[i].nam>>a[i].mon>>a[i].cont;
      a[i].sum=a[i].mon*a[i].cont;
    }
    for(int i=0;i<n;i++){
      for(int j=n-1;j>i;j--){
	if(a[i].nam==a[j].nam){
	  a[i].sum+=a[j].sum;
	  a[j].sum=0;
	}
      }
    }
    for(int i=0;i<n;i++){
      if(a[i].sum>=1000000){
	cout<<a[i].nam<<endl;
	nacount++;
      }
    }if(nacount==0){
      cout<<"NA"<<endl;
    }
  }
  return 0;
}