(n == 0) {break;};
    unsigned long int price[4000], value[4000];
    for (int i = 0; i < 4000; i++) {
      price[i] = 0;
      value[i] = 0;
    }
    
    for (int i = 0; i < n; i++) {
      int a,b,c;
      cin >> a >> b >> c;
      price[a-1] += b;
      value[a-1] += c;
    }
    
    bool NA =
