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 PYTHON):

Solution:
# -*- coding: utf-8 -*-
while True:
    n = int(raw_input())
    if n == 0:
        break
    else:
        IDdic={}
        for k in range(n):  
            ID, p, q = map(int,raw_input().split())
            if ID not in IDdic:
                IDdic[ID] = [k, p*q]
            elif ID in IDdic:
                IDdic[ID][1] += p*q

        # IDの出現順はIDdic[ID][0] (=k)で確認できる
        temp = []        
        for key in IDdic.keys():
            m=0
            if IDdic[key][1] >=1000000 :
                m+=1
                temp.append((IDdic[key][0],key))
                temp=sorted(temp)
        for sortedID in temp:
            print sortedID[1]
        if temp==[]:
            print "NA"