#include <iostream>
using namespace std; 

class B{
   double b;
public:
   B(double vb):b(vb){};
   void print(){cout<<b<<endl;}
};

class A{
   int a;
public:
   A(int va):a(va){};
   operator B(){return B(a+0.5);};
   void print(){cout<<a<<endl;};
};