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 PYTHON3):

Solution:
# -*- coding: utf-8 -*-
"""
http://judge.u-aizu.ac.jp/onlinejudge/description.jsp?id=0100&lang=jp
"""
import sys
from collections import OrderedDict


def solve(data):
    # ?£???????1,000,000??\????????????ID?????????
    # ??????????????????????????°????????´??????????????????ID?????\??????????????????????????????????????????
    sums = OrderedDict()
    for id, p, q in data:
        if id in sums:
            sums[id] += p * q
        else:
            sums[id] = p * q
    result = [key for key, value in sums.items() if value >= 1000000]
    return result



def main(args):
    #data = []
    #data.append([1001, 2000, 520])
    #data.append([1002, 1800, 450])
    #data.append([1003, 1600, 625])
    #data.append([1001, 200, 1220])
    while True:
        num = int(input())
        if num == 0:
            break
        data = []
        for _ in range(num):
            data.append([int(x) for x in input().split(' ')])
        result = solve(data)
        if result:
            for ele in result:
                print(ele)
        else:
            print('NA')


if __name__ == '__main__':
    main(sys.argv[1:])