#include <iostream>
using namespace std;
class Rectangle{
private:
int length ;
int breadth ;
public:
Rectangle(int l=0, int b=0);
Rectangle (Rectangle &r);
void setLength(int l);
void setBreadth(int b);
int getLength(){return length;}
int getBreadth(){return breadth;}
int area();
int perimeter();
};
Rectangle::Rectangle(int l, int b){
setLength(l);
setBreadth(b);
}
Rectangle::Rectangle (Rectangle &r){
length = r.length;
breadth = r.breadth;
}
void Rectangle::setLength(int l){
if(l>=0)
length = l;
else
length = 0;
}
void Rectangle::setBreadth(int b){
if (b>=0)
breadth = b;
else
breadth = 0;
}
int Rectangle::area(){
return length*breadth;
}
int Rectangle::perimeter(){
return 2*(length+breadth);
}
int main() {
int l, b;
cin >> l >> b;
Rectangle r1(l, b);
Rectangle r2(r1);
cout<<r2.area();
return 0;
}
