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 C# (judge verdict: Wrong Answer)

using System;
using System.Collections.Generic;

namespace AOJ_SaleResult
{
    class Program
    {
        static void Main(string[] args)
        {
            while(true)
            {
            Dictionary<int, int> dict = new Dictionary<int,int>();
            int datasize;
            datasize = int.Parse(Console.ReadLine());
            if (datasize == 0)
                Environment.Exit(0);
            for(int i=0;i<datasize;i++)
            {
                string buf;
                string[] splitdata;
                buf = Console.ReadLine();
                splitdata = buf.Split(' ');
                if(dict.ContainsKey(int.Parse(splitdata[0])))
                {
                    dict[int.Parse(splitdata[0])] += int.Parse(splitdata[1]) * int.Parse(splitdata[2]);
                }
                else 
                {
                    dict.Add(int.Parse(splitdata[0]), int.Parse(splitdata[1])*int.Parse(splitdata[2]));
                }
            }
            int count = 0;
            foreach (int key in dict.Keys)
            {
                if (dict[key] >= 1000000)
                {
                    Console.WriteLine(key);
                    count++;
                }
            }
            if (count == 0)
                Console.WriteLine("NA");
            }
        }
    }
}