Problem:
Sale Result

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"

Sample 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 for the Sample Input

1001
1003
NA
2013

Solution in Ruby (judge verdict: Wrong Answer)

# 人数を入力
N = gets.chomp.to_i

# 配列の作成
data = Array.new(N){ Array.new(3) }

# データ入力
for i in 0..N-1
	arr = gets.chomp.split("\s")
	for j in 0..2
		data[i][j] = arr[j].to_i
	end
end

# 判定
flag = false

for k in 0..N-1
	if data[k][1] * data[k][2] >= 1000000
		puts data[k][0]
		flag = true
	end
end

# 該当者なしの場合
if flag == false
	puts "NA"
end