#include <iostream>
#include <map>

int main(){
    int n, id, p, q;
    std::map<int, int> workers;
    std::map<int, int>::iterator it;
    
    while(std::cin >> n){
        if(!n)
            break;
            
        for(int i=0; i<n; i++){
            std::cin >> id >> p >> q;
            workers[id] += p * q;
        }
        
        bool found = false;
        for(it = workers.begin(); it != workers.end(); it++){
            if(it->second >= 1000000){
                    std::cout << it->first << std::endl;
                    found = true;
            }
        }
        
        if(!found)
            std::cout << "NA" << std::endl;
        workers.clear();
    }
    
    return 0;
}