#include <cstdio>
#include <iostream>
#include <map>
using namespace std;

int main(){
	while(1){
		long n;
		map<int, long long> mp;
		
		scanf(" %ld", &n);
		if(n==0) break;
		
		for(long i=0; i<n; ++i){
			int num;
			long t, u;
			scanf(" %d %ld %ld", &num, &t, &u);
			
			if(mp.find(num)!=mp.end()) mp[num] += t*u;	
			else mp[num]=t*u;
				
		}		
		
		int count=0;
		for(map<int, long long>::iterator itr=mp.begin(); itr!=mp.end(); ++itr){
			if(itr->second>=1000000){
				printf("%d\n", itr->first);
				++count;
			}		
		}
		
		if(count==0) printf("NA\n");
	}	
}