#include
using namespace std;
class B;
class A
{
public:
A(){a=1;}
void print(B& b)
{
cout<<"b"< }
int geta()
{
return a;
}
private:
int a;
};
class B
{
public:
B(){b=2;}
void print(A& a)
{
cout< }
int getb()
{
return b;
}
private:
int b;
};
void main()
{
A a;
B b;
a.print(b);
b.print(a);
}
