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:
from sys import stdin

if __name__ == '__main__':
    for line in stdin:
        if int(line) == 0:
            break

        isEmpty = True
        record = {}
        for _ in range(int(line)):
            employee = input().split(' ')
            total = int(employee[1]) * int(employee[2])

            if total >= 1000000:
                print(employee[0])
                isEmpty = False
            else:
                e_t = record.get(employee[0])

                if e_t:
                    e_t = record.get(employee[0]) + total
                    if e_t >= 1000000:
                        print(employee[0])
                        isEmpty = False
                    else:
                        record[employee[0]] = e_t

                else:
                    record[employee[0]] = total

        record.clear()

        if isEmpty:
            print('NA')