import java.util.ArrayList;
import java.util.List;

public class Factory {
List<String> vaccines = new ArrayList<>();

#include <iostream>
using namespace std;

int main()
{

#include <iostream>

using namespace std;

int main()

#include <iostream>
using namespace std;

int main()
{

#include <iostream>
using namespace std;

int main()
{

import java.util.ArrayList;
import java.util.List;
import java.util.Random;
import java.util.Scanner;
import java.util.concurrent.Semaphore;

import java.util.ArrayList;
import java.util.List;
import java.util.Random;

public class Main {

{
"ip": {
"8.210.206.229": 2055,
"104.211.11.48": 1687,
"52.243.42.173": 203,

import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.Semaphore;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;

#include <iostream>
using namespace std;

int main()
{