//haha.cpp
#include <iostream.h>
class BBS {
    int data;
public:
    BBS( ) { data=0; }
    BBS(int a) { data = a; };  // new constructor
    friend ostream& operator<<(ostream&oo, BBS a);
};
int main( ) {
    BBS a;   BBS y(38);
    cout << "a=" << a << endl;
    cout << "y=" << y << endl;
}
ostream&operator<<(ostream&oo, BBS a)
 {  oo << a.data << endl; 
        return oo;
 }