#include <bits/stdc++.h>
using namespace std;
 
class Rectangle {
    int length;
    int breadth;
 
public:
    Rectangle(int l, int b) {
        length = l;
        breadth = b;
    }
 
    int area() { return length * breadth; }
};
 
int main() {
 
    // Create shared_ptr Smart Pointer
    shared_ptr<Rectangle> P1(new Rectangle(10, 5));
 
    // Created a weak_ptr smart pointer
    weak_ptr<Rectangle> P2 (P1);
    cout << P1->area() << endl;
 
    // Returns the number of shared_ptr 
    // objects that manage the object
    cout << P1.use_count();
    return 0;
}

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