#include<map>
#include<iostream>
using namespace std;
int main(){
        map<int,int> total;
        int d,num,item,ko;
        while(cin>>d){
                if(d==0) break;
                for(int i=0;i<d;i++){
                        cin>>num>>item>>ko;
                        item *= ko;
                        //cout<<item<<endl;
                        if(item>=1000000){
                                total.insert(make_pair(num,item));
                        }
                }
                if(total.size()==0) cout<<"NA"<<endl;
                else{
                        map<int,int>::iterator it;
                        for(it=total.begin();it!=total.end();it++){
                                cout<<(*it).first<<endl;
                        }
                        total.clear();
                }
        }
}