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 PYTHON3):

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

    lst = [0]*4001
    elst = []
    ans = []
    for i in range(n):
        e, p, q = map(int, input().split())
        if lst[e]:
            pass
        else:
            elst.append(e)

        lst[e] = lst[e] + p*q

    for i in elst:
        if lst[i] >= 1000000:
            ans.append(i)

    if ans == []:
        print('NA')
    
    else:
        for i in ans:
            print(i)