#include <iostream>
using namespace std;
 
template<class T>
class Method
{
	T* object;
	void (T::*method)();
public:
	Method(T* o, void (T::*m)()) : object(o), method(m) {}
	void operator()() { (object->*method)(); }
};
 
class Foo
{
public:
	void a() { cout << "a" << endl; }
	void b() { cout << "b" << endl; }
};
 
int main() {
	Foo foo;
	Method<Foo> method_a(&foo, &Foo::a);
	Method<Foo> method_b(&foo, &Foo::b);
 
	method_a();
	method_b();
	// your code goes here
	return 0;
}

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