text: #pragma once
  #include "Shape.h"
  
  class Square : public Shape
  {
  	int side;
  
  public:
  	Square(int side_length)
  		: side(side_length)
  	{}
  
  	int Perimeter() final override
  	{
  		return side * 4;
  	}
  
  	int Area() final override
  	{
  		return side * side;
  	}
  };