#include <iostream>
using namespace std;

int main(){
   int t, a, b, c, n, emp[4001]={};
  while(1){
   t = 0;
   cin >> n;
   if(n == 0) break;
   for(int i = 0;i < n;++i){
     cin >> a >> b >> c;
     emp[a] += b * c;
  }  
   for(int i = 1;i < 4001;++i){
     if(emp[a] >= 1000000){
       cout << a << endl;
       t++;
    }
  }
   if(t == 0) cout << "NA" << endl;
 }
return 0;
}