class Program02
{
	public static void main(String args[])
	{
		(new Thread()
		{
			public void run()
			{
				while(true)
				{
					System.out.println("Másik szál");
					try
					{
						Thread.sleep(1000);
					}
					catch(InterruptedException ex)
					{
						Thread.currentThread().interrupt();
					}

				}
			}

		}).start();

		while(true)
		{
			System.out.println("Főszál");
			try
			{
				Thread.sleep(2000);
			}
			catch(InterruptedException ex)
			{
				Thread.currentThread().interrupt();
			}
		}

	}
}