class smallDOUBLE;
 
class smallINT
{
private:
    int val;
public:
	smallINT() :val(0){}
	smallINT(int i) :val(i){}
	operator smallDOUBLE();
};
 
class smallDOUBLE
{
private:
	double val;
public:
	smallDOUBLE() :val(0){}
	smallDOUBLE(double i) :val(i){}
	operator smallINT() { return val; }
};
 
smallINT::operator smallDOUBLE() { return val; }
 
int main()
{
	smallINT int1(10);
	smallDOUBLE DBL1(123.22);
	smallINT int2 = DBL1;
	smallDOUBLE DBL2 = int1;
}

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