#include </usr/local/include/boost/thread.hpp>

using namespace boost;

class Runner1
{
	public:
		void operator()()
		{
			sleep(2);
		}
};

class Runner2
{
	public:
		void operator()()
		{
			sleep(2);
		}
};

int main()
{
	Runner1 r1;
	Runner2 r2;

	thread t1(r1);
	thread t2(r2);

	t1.join();
	t2.join();
}