/*
AizuOnline A0100
Sale Result
*/
#include <stdio.h>

long long int uriage[4000];

main()
{
  int i,cnt;
  int code;
  long int tannka,suuryou;
  int flag;
  
  while(EOF != scanf(" %d",&cnt) && cnt > 0)
    {
    for(i=0;i<4000;i++)
      uriage[i]=0;
      
    for(i=0;i<cnt;i++)
      {scanf("%d %ld %ld",&code,&tannka,&suuryou);
       uriage[code] += tannka * suuryou;
      }
    flag = 0;
    for(i=0;i<4000;i++)
      if(uriage[i] >= 1000000)
        {  flag = 1;
          printf("%d\n",i);
        }
    if(flag == 0)
      printf("NA\n");
    }

return(0);
}