# AOJ 0100 Sale Result
# Python3 2018.6.17 bal4u

while True:
	n = int(input())
	if n == 0: break

	id = []
	pq = [-1]*4001
	for i in range(n):
		e, p, q = list(map(int, input().split()))
		if pq[e] < 0:
			id.append(e)
			pq[e] = p*q
		else: pq[e] += p*q
		
	f = False
	for e in id:
		if pq[e] >= 1000000:
			print(e)
			f = True
	if not f: print('NA')
