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 2 > 1:
    line_num = int(raw_input())
    if line_num < 1:
        break
    mydict = {}
    mydict_distinct = {}
    myIDlist = []
    for n in range(line_num):
        dat = map(int, raw_input().split(" "))
        if dat[0] in mydict_distinct:
            mydict[dat[0]] += dat[1] * dat[2]
        else:
            mydict[dat[0]] = dat[1] * dat[2]
            mydict_distinct[dat[0]] = 1
            myIDlist.append(dat[0])
    flg = 0
    for n in myIDlist:
        if mydict[n] > 999999:
            print n
            flg = 1
    if flg == 0:
        print 'NA'