#include <iostream.h>
#include <stdlib.h>
class punto{
public:
punto (float xi,float yi, float zi)  {Asignar(xi, yi, zi);}
void Asignar(float xi, float yi=0, float zi=0)
{
	x=xi;
	y=yi;
	z=zi;
}

void Ver()
{
cout<<"("<<x<<","<<y<<","<<z<<")"<<endl;
}
private:
float x,y,z;
};
int main()
{
punto P(0,0,0);

P.Ver();
P.Asignar(12);
P.Ver();
P.Asignar(12,35);
P.Ver();
P.Asignar(34,43,12);
P.Ver();
system("PAUSE");
return 0;
}