#include <iostream>
#include <vector>
#include <utility>
#include <algorithm>
#include <map>

using namespace std;

int main(){

    int n;
    while(cin >> n, n){
        map<int, long long int> m;
        for(int i=0; i < n; i++){
            int num, cost, goodsNum;
            cin >> num >> cost >> goodsNum;
            m[num] += cost*goodsNum;
        }

        bool exist = false;
        map<int, long long int>::iterator it = m.begin();
        while(it != m.end()){
            if(1000000 <= (*it).second){
                cout << (*it).first << endl;
                exist = true;
            }
            ++it;
        }

        if(!exist)cout << "NA" << endl;
    }
}