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:

import sys


class Person:
    def __init__(self, number):
        self.number = number
        self.total_sales = 0

    def sales(self, price, quantity):
        self.total_sales += price * quantity


while True:
    n = int(sys.stdin.readline())
    if n == 0:
        exit()
    persons = []
    for i in range(n):
        num, price, quantity = tuple(map(int, sys.stdin.readline().split(' ')))
        person = filter(lambda x: x.number == num, persons)
        if person:
            person[0].sales(price, quantity)
        else:
            person = Person(num)
            person.sales(price, quantity)
            persons.append(person)
    over_million = filter(lambda x: x.total_sales >= 1000000, persons)
    if not over_million:
        print 'NA'
    else:
        for p in over_million:
            print p.number