#include <iostream>
using namespace std;
class Shape {
public:
int lineCount;
Shape(int lineCount): lineCount(lineCount) {}
};
class Square: public Shape {
public:
int sideLength;
Square(int sideLength):
Shape(4), sideLength(sideLength) {}
};
Square square(5);
//square.lineCount is 4
cout << "lineCount is " << square.lineCount;