#include <iostream> 
using namespace std;  
 
class A { 
public: 
        A(int a = 0){cout << "a (int)" << endl;}
        A(double a = 0, char c = 0){cout << "a (double , char)" << endl;}
public: void f () {cout << "f ()" << endl; }
        void g () {cout << "g ()" << endl; }
};
int main () 
{ 
    A a; 
    a.f();
    a.g();

	for(;;);
	return 0;
	
}