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
	employee_no = []
	info = {}
	for r in range(n):
		no,unit_price,quantity = map(int, raw_input().split(' '))
		if no in info:
			info[no] += unit_price*quantity
		else:
			info[no] = unit_price*quantity
		if not no in employee_no:
			employee_no.append(no)
	output_flg = False
	for no in employee_no:
		if info[no] >= 10**6:
			output_flg = True
			print no
	if not output_flg:
		print "NA"