#include <iostream>
using namespace std;
class Rectangle
{
private:
    double lengd;
    double breidd;
public:
    double getLength();
    double getWidth();
    void perimeter();
    void area();
    void setSize(double len,double width);
    void input();
};
int main(int argc, const char * argv[]) {
    Rectangle myRectangle;
    myRectangle.input();
    cout << "Area: ";
    myRectangle.area();
    cout << "Perimeter: ";
    myRectangle.perimeter();

    double len = myRectangle.getLength();
    double width = myRectangle.getWidth();
    myRectangle.setSize(len+1.0, width+1.0);

    cout << "Area: ";
    myRectangle.area();
    cout << "Perimeter: ";
    myRectangle.perimeter();

    return 0;

}
void Rectangle::input()
{
    cout << "Length: " << endl;
    cin >> lengd;
    cout << "Width: " << endl;
    cin >> breidd;
}
void Rectangle::area()
{
    double area;
    area = lengd*breidd;
    cout << area;
}
void Rectangle::perimeter()
{
    double perimeter;
    perimeter = 2*(lengd+breidd);
    cout << perimeter << endl;
}
double Rectangle::getLength()
{
    return lengd;
}
double Rectangle::getWidth()
{
    return breidd;
}