#include＜iostream.h＞
class A
{private:
int x,y;
public:
void f1(int i=0,int j=0){x=i;y=j;}
void print 1{cout＜＜x＜＜""＜＜y＜＜endl;}
void f1(int i=0){x=i,y=0;}
};
void main 2
{A a;
a.f1(5);
a.print 3;
}