Go: package main

import (
	"bufio"
	"fmt"
	"os"
	"strconv"
	"strings"
)

func main() {
	stdin := bufio.NewScanner(os.Stdin)

	for stdin.Scan() {
		n, _ := strconv.Atoi(stdin.Text())
		if n == 0 {
			break
		}
		sales := make(map[string]int)
		existed := make(map[string]bool)
		order := make([]string, 4000)
		flg := false
		for i := 0; i < n; i++ {
			stdin.Scan()
			l := strings.Split(stdin.Text(), " ")
			e := l[0]
			p, _ := strconv.Atoi(l[1])
			q, _ := strconv.Atoi(l[2])
			sales[e] += p * q
			if !existed[e] {
				order = append(order, e)
				existed[e] = true
			}
		}
		for _, v := range order {
			if sales[v] >= 1000000 {
				fmt.Println(v)
				flg = true
			}
		}
		if flg == false {
			fmt.Println("NA")
		}
	}
}

C++: #include <iostream>
#include <string>
#include <algorithm>
#include <functional>
#include <vector>
#include <utility>
#include <cstring>
#include <iomanip>
#include <numeric>
#include <cmath>
#include <queue>
#include <map>
#include <unordered_set>
using namespace std;
typedef long long ll;
const int INF = 1<<30; 
const int MOD = 1e9 + 7;
const int dy[] = {1, 0, -1, 0};
const int dx[] = {0, 1, 0, -1};
int main()
{
    cin.tie(0);
    ios::sync_with_stdio(false);
    int n;
    while(cin >> n, n)
    {
        map<int, ll> info;
        bool used[5000] = {};
        vector<int> v(n, 0);
        bool flag = false;
        for(int i = 0; i < n; i++)
        {
            ll p, q; cin >> v[i] >> p >> q;
            info[v[i]] += p * q;
        }
        for(int i = 0; i < n; i++)
        {
            if(used[v[i]]) continue;
            if(info[v[i]] >= 1000000)
            {
                cout << v[i] << endl;
                used[v[i]] = true;
                flag = true;
            }
        }
        if(flag == false) cout << "NA" << endl;
    }
    return 0;
}

C++: #include<bits/stdc++.h>
using namespace std;
long long sum[10000];
int main(){
    long long int n, a[10000], b, c;
    while(true){
        scanf("%lld", &n);
        if(n==0)break;
        bool na = true;
        for(int i = 0; i < n; i++){
            scanf("%lld%lld%lld", &a[i], &b, &c);
            sum[a] += b*c;
            /*if(b*c>=1000000){
                na = false;
                printf("%lld\n", a);
            }*/
        }
        for(int i = 0; i < n; i++){
            if(sum[a[i]] >= 1000000){
                na = false;
                printf("%lld\n", a);
            }
        }
        
        if(na) puts("NA");
    }
}

C++: class CMem {
public :
	CMem() { m_check = false; m_sale = 0; }
	void Idata(long long sale) { m_sale += sale; m_check = true; }
	bool Ocheck() { return m_check; }
	long long Osale() { return m_sale; }
private :
	bool m_check;
	long long m_sale;
};

int main(void)
{
	while(1) {
		CMem member[4001];
		bool NA = true;
		int n, id, asale, scale;
		long long sale;

		cin >> n;
		if(n == 0) break;

		for(int i = 0; i < n; i++) {
			cin >> id >> asale >> scale;
			sale = asale * scale;

			member[id].Idata(sale);
		}

		for(int i = 1; i <= 4000; i++) {
			if(member[i].Ocheck() == true && member[i].Osale() >= 1000000) {
				cout << i << endl;
				NA = false;
			}
		}

		if(NA == true) cout << "NA" << endl;
	}
	return 0;
}

C++: #include <cstdio>
using namespace std;

typedef __int64 Int;

int main(){
	const int AIM = 1000000;
	int n;
	int num, per, sum;
	bool exist;
	bool comp[4001];
	Int pro[4001];
	
	while(true){
		scanf("%d", &n);
		if(n == 0) break;
		for(int i = 1; i <= 4000; i++){
			comp[i] = false;
			pro[i] = 0;
		}
		exist = false;
		for(int i = 0; i < n; i++){
			scanf("%d%d%d", &num, &per, &sum);
			if(comp[num]) continue;
			if(pro[num] + (Int)per * sum >= AIM){
				exist = true;
				comp[num] = true;
				printf("%d\n", num);
			}
			else{
				pro[num] += (Int)per * sum;
			}
		}
		if(!exist) printf("NA\n");
	}
	
	return 0;
}

C++: //include
//------------------------------------------
#include <iostream>
#include <vector>
#include <list>
#include <map>
#include <set>
#include <queue>
#include <deque>
#include <stack>
#include <bitset>
#include <algorithm>
#include <functional>
#include <numeric>
#include <utility>
#include <sstream>
#include <iomanip>
#include <cstdio>
#include <cmath>
#include <cstdlib>
#include <cctype>
#include <string>
#include <cstring>
#include <ctime>
using namespace std;

//repetition
//------------------------------------------
#define FOR(i,a,b) for(int i=(a);i<(b);i++)
#define FORR(i,a,b) for(int i=(a);i>(b);i--)
#define REP(i,n)  FOR(i,0,n)

//conversion
//------------------------------------------
inline int toInt(string s) {int v; istringstream sin(s);sin>>v;return v;}
template<class T> inline string toString(T x) {ostringstream sout;sout<<x;return sout.str();}

//debug
//-------------------------------------------
#define dump(x)  cerr << #x << " = " << (x) << endl;
#define debug(x) cerr << #x << " = " << (x) << " (L" << __LINE__ << ")" << " " << __FILE__ << endl;

long long data[4001];

int main() {
    cin.tie(0);
    ios::sync_with_stdio(false);

    int n;
    while(1) {
        cin >> n;
        if (!n) break;
        memset(data, 0, sizeof(data));
        REP(i, n) {
            int e, p, q;
            cin  >> e >> p >> q;
            data[e] += p * q;
        }
        int c = 0;
        FOR(i, 1, 4001) {
            if (data[i] >= 1000000) {
                cout << i << endl;
                ++c;
            }
        }

        if (!c) cout << "NA" << endl;
    }

    return 0;
}

C++: #include <iostream>
#include <algorithm>
#include <functional>
#include <vector>
#include <cstdio>
#include <string>
#include <cmath>
#include <cfloat>
#include <map>
using namespace std;
int main(){
	
	int n;
	
	while(cin>>n,n!=0){
		int a,b,c;
		int f=0;
		int s[4001]={0};
		
		for(int i=0;i<n;i++){
			cin>>a>>b>>c;
			s[a]+=b*c;
		}
		for(int i=0;i<4001;i++){
			if(s[i]>=1000000){
				cout<<i<<endl;
				f=1;
			}
			
		}
		if(f!=1)
			cout<<"NA"<<endl;
	
	}
	
}

C++: #include <stdio.h>
struct emp{
    int num,sale;
};
int main(){
    while(1){
        int n,num,p,q,count=0,c,flag1=0,flag2=0;
        struct emp e[4000];
        scanf("%d",&n);
        if(n==0) return 0;
        for(int i=0;i<n;i++){
            scanf("%d %d %d",&num,&p,&q);
            c=count;
            flag1=0;
            for(int j=0;j<count;j++){
                if(e[j].num==num) {
                    e[j].sale+=p*q;
                    flag1=1;
                    break;
                }
            }
            if(!flag1){
                e[count].num=num;
                e[count].sale=p*q;
                count++;
            }
        }
        for (int i=0; i<count; i++){
            if (e[i].sale>=1000000) {
                printf("%d\n",e[i].num);
                flag2=1;
            }
        }
        if(!flag2) printf("NA\n");
    }
}

C++: #include<iostream>
#include<vector>
#include<cstring>
#include<algorithm>
using namespace std;

#define rep(i,n) for(int i=0;i<n;i++)

int main(){
	int n;
	while( cin >> n, n ){
		long long emp[4001];
		vector<int> nums;
		bool exist = false;
		memset( emp, 0, sizeof(emp) );
		rep(i,n){
			int num;
			long long val, am;
			cin >> num >> val >> am;
			emp[num] += val*am;
			if( find(nums.begin(), nums.end(), num) == nums.end() ){
				nums.push_back(num);
			}
		}
		rep(i,nums.size()){
			if( emp[nums[i]] >= 1000000 ){
				exist = true;
				cout << nums[i] << endl;
			}
		}
		if(!exist){
			cout << "NA" << endl;
		}

	}
	return 0;
}