#include<iostream>
using namespace std ;

int main(){
	
	int n , m[4001] = {} ;
	int num , coin , sell ;
	int member[4001] = {} , j , p ;
	
	while(1){
		cin >> n ;
		if( n==0 ) break ;
		
		p = 0 ;
		for( int i=0 ; i<n ; i++ ){
			cin >> num >> coin >> sell ;
			m[num] += coin * sell ;
			for( j=0 ; j<n ; j++ ){
				if( member[j] == num ) break ;
			}
			if( j == n ){
				member[p] = num ;
				p++ ;
			}
		}
		
		j = 0 ;
		for( int i=0 ; i<p ; i++ ){
			if( m[member[i]] >= 1000000 ) cout << member[i] << endl ;
			else j++ ;
		}
		if( j==p ) cout << "NA" << endl ;
		
		for( int i=0 ; i<=4000 ; i++ ){
			m[i] = 0 ;
			member[i] = 0 ;
		}
	}
	
return 0;
}