#include<iostream>
using namespace std;

int main(){
    int n;
    long int array[n][3];
    int count=0;
    cin>>n;
    for(int i=0;i<n;i++){
        cin>>array[i][0]>>array[i][1]>>array[i][2];
    }

    for(int i=0;i<n;i++){
        if(array[i][1]*array[i][2]<=1000000){
            cout<<array[i][0]<<"\n";
            count++;
        }
    }
    if(count==0) cout<<"NA\n";
}