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:
import sys
from collections import OrderedDict

data = OrderedDict()                                                              
for line in sys.stdin:                     
    lst = line.split(' ')
            
    if len( lst ) < 2:
        cnt = 0            
        for key, val in data.items():
            if val >= 1000000:
                print key
                cnt = cnt + 1
                                               
        if len( data ) != 0 and cnt == 0:
            print "NA"
                                               
        if lst[0] == 0:
            break
                                                         
        data = OrderedDict()
        continue
                                                  
    lst = map(int, lst)
    if lst[0] in data:
        data[ lst[0] ] = data[ lst[0] ] + lst[1]*lst[2]
    else:
        data[ lst[0] ] = lst[1]*lst[2]

sys.exit(0)