#include<iostream>
using namespace std;
int main()
{
	int n;
	int number[4000]={0};
	int tanka;
	int ryou;
	long long goukei[4000]={0};
	while(cin>>n&&n){
		for(int i=0;i<n;i++){
			cin>>number[i];
			cin>>tanka;
			cin>>ryou;
			goukei[i]=tanka*ryou;
		}
		for(int i=0;i<n-1;i++){
			for(int j=i+1;j<n;j++){
				if(number[i]==number[j]){
					goukei[i]+=goukei[j];
					if(goukei[i]>=1000000)goukei[i]=1000000;
					goukei[j]=0;
					}
			}
		}
		int flag=-1;
		for(int i=0;i<n;i++){
			if(goukei[i]>=1000000){
				flag=0;
				cout<<number[i]<<endl;
				}
		}
		if(flag==-1)
			cout<<"NA"<<endl;
	}
	return 0;
}