template<class T1, class T2>
class Two : public One<T1>, public One<T2> {};

template<class T1, class T2, class T3>
class Three : public One<T1>, public One<T2>, public One<T3> {};

template<class T1, class T2, class T3, class T4>
class Four : public One<T1>, public One<T2>, public One<T3>, public One<T4> {};

	Four<int, char, float, unsigned> four;
	four.One<int>::Create() = 123;