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 Python3 (judge verdict: Accepted)

while True:
    n=int(input())
    if n==0:break
    res={}
    li=[]
    for i in range(n):
        d=[int(num) for num in input().split(' ')]
        if d[0]-1 in res:
            res[d[0]-1]+=d[1]*d[2]
        else:
            res[d[0]-1]=d[1]*d[2]
            li.append(d[0]-1)
    flag=False
    for i in li:
        if res[i]>=1000000:
            print(i+1)
            flag=True
    if flag==False:print("NA")