#include <iostream>
#include<cstdio>
#include<vector>
#include<map>

using namespace std;

int main()
{
    while(1){
        int n;
        scanf(" %d",&n);
        if(n==0)break;

        vector<int> bangoulist;
        map<int,long long int> alldata;
        alldata.clear();
        for(int i=0;i<n;i++){
                int bangou,tanka,num;
                scanf(" %d %d %d",&bangou,&tanka,&num);
                if(alldata[bangou]!=0){
                        alldata[bangou]+=tanka*num;
                }else{
                        bangoulist.push_back(bangou);
                        alldata[bangou]=tanka*num;
                }
        }
        bool flag=true;
        for(int i=0;i<(int)bangoulist.size();i++){
                if(alldata[bangoulist[i]]>=1000000){
                        cout<<bangoulist[i]<<"\n";
                        flag=false;
                }
        }
        if(flag)cout<<"NA\n";
    }
    return 0;
}