#include<iostream>
#include<cstdio>
#include<vector>

using namespace std;

struct data{
  int id;
  int price;
  int amount;
  int rate;
};

int main(){
  int n=0;
  while(1){
    cin>>n;
    if(n==0){return 0;}
    vector<struct data> data(n);
    int c=0;
    for(int i=0;i<n;i++){
      scanf("%d %d %d",&data[i].id,&data[i].price,&data[i].amount);
      data[i].rate=data[i].price*data[i].amount;
    }
    for(int i=0;i<n;i++){
      if(data[i].rate>=1000000){
	cout<<data[i].id<<"\n";
	c++;
      }
    }
    if(c==0){
      cout<<"NA\n";
    }
  }
  return 0;
}