#include <fstream>
using namespace std;

main(){
 int n,m=0;
 int id[4000],tanka[4000],suryou[4000];

cin>>n;
while(n!=0){
 for(int i=0;i<n;i++){
  cin>>id[i]>>tanka[i]>>suryou[i];
 }

 for(int i=0;i<n;i++){
  if(tanka[i]*suryou[i]>=1000000){
   cout<<id[i]<<endl;
   m++;
  }
 if(m==0) cout<<"NA"<<endl;
 cin>>n;
}
}