#include<iostream>
using namespace std;

int main()
{
    int n;
    while(cin >> n,n){
        bool hantei=true,border[n];
        long long number[n],price[n],quantity[n];
        for(int i=0 ; i<n ; i++){
            border[i]=false;
            cin >> number[i] >> price[i] >> quantity[i];
            if(price[i]*quantity[i]>=1000000){
                border[i]=true;
            }
        }
        for(int i=0 ; i<n ; i++){
            if(border[i]){
                cout << number[i] << endl;
                hantei=false;
            }
        }
        if(hantei){
            cout << "NA" << endl;
        }
    }
    return 0;
}