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:
while True:
    N = int(raw_input())
    if N == 0: break
    dic = {}
    for i in range(N):
        n, p, q = map(int, raw_input().split())
        if not n in dic:
            dic[n] = [i,p*q]
        else:
            dic[n][1] = dic[n][1]+p*q
            
    lis = [(v[0], k) for k, v in dic.items() if v[1] >= 1000000]
    if lis:
        for t in sorted(lis, key=lambda x: x[0]):
            print t[1]
    else:
        print 'NA'