#include <iostream>

template< typename T >
void f( T a)
{
  std::cout << "1\n";
}

template< typename T >
void f( T* a)
{
  std::cout << "2\n";
}

template<>
void f< int* > ( int* a)
{
  std::cout << "3\n";
}


int main(int argc, char const *argv[])
{
  int* pb;
  f(pb);
  return 0;
}