using System;
using System.Collections.Generic;
using System.Linq;


namespace ConsoleApplication1
{
    class Program
    {
        private static void Main(string[] args)
        {
            new p0100();

        }
    }

    class p0100
    {
        public p0100()
        {
            while (true)
            {
                var n = int.Parse(Console.ReadLine());
                
                if(n==0) return;

                var sList = new List<String>();
                for (int i = 0; i < n; i++)
                {
                    sList.Add(Console.ReadLine());
                }

                var data = new int[n,3];

               var cnt = 0;
                foreach (var q in sList.Select(str => str.Split(' ')))
                {
                    data[cnt, 0] = int.Parse((q[0]));
                    data[cnt, 1] = int.Parse((q[1]));
                    data[cnt, 2] = int.Parse((q[2]));
                    cnt++;
                }

                bool once = false;
                for (int i = 0; i < n; i++)
                {
                    if (data[i, 1]*data[i, 2] < 1000000) continue;
                    Console.WriteLine(data[i,0]);
                    once = true;
                }
                if(!once)
                Console.WriteLine("NA");
            
            }


        }
    }
}