Problem: There is data on sales of your company. Your task is to write a program which identifies good workers.

The program should read a list of data where each item includes the employee ID i, the amount of sales q and the corresponding unit price p. Then, the program should print IDs of employees whose total sales proceeds (i.e. sum of p × q) is greater than or equal to 1,000,000 in the order of inputting. If there is no such employees, the program should print "NA". You can suppose that n < 4000, and each employee has an unique ID. The unit price p is less than or equal to 1,000,000 and the amount of sales q is less than or equal to 100,000.



Input

The input consists of several datasets. The input ends with a line including a single 0. Each dataset consists of:


n (the number of data in the list)
i p q
i p q
:
:
i p q


Output

For each dataset, print a list of employee IDs or a text "NA"

Example

Input

4
1001 2000 520
1002 1800 450
1003 1600 625
1001 200 1220
2
1001 100 3
1005 1000 100
2
2013 5000 100
2013 5000 100
0


Output

1001
1003
NA
2013

Solution (in CPP):

Solution:
#include <iostream>
#include <map>
using namespace std;
map<int,long long> sl;
int order[4000];
int main()
{
    int n;
    while(1)
    {
        cin>>n;if(!n)return 0;
        int count=0;
        int od=0;
        sl.clear();
        for(int i=0;i<n;++i){
            int sn;
            long long t,v;
            cin>>sn>>t>>v;
            map<int,long long>::iterator it=sl.find(sn);
            if(it==sl.end()){
                order[od++]=sn;
                sl.insert(make_pair(sn,t*v));
            }
            else it->second+=t*v;
        }
        for(int i=0;i<od;++i){
            if(sl[order[i]]>=1000000){cout<<order[i]<<endl;++count;}
        }
        if(!count)cout<<"NA"<<endl;
    }
}