Object Sizes in Multi level Inheritance

// Multi-level inheritance
#include <iostream>
class Sample
{
	private : int a ;
	protected : int b ;
	public : int c ;
} ;
class NewSample : public Sample
{
	private : int i ;
	protected : int j ;
	public : int k ;
} ;
class FreshSample : public NewSample
{
	private : int x ;
	protected : int y ;
	public : int z ;
} ;
int main( )
{
	Sample s1 ;
	NewSample s2 ;
	FreshSample s3 ;
	
	std :: cout << "Size of s1 = " << sizeof ( s1 ) << std :: endl ;
	std :: cout << "Size of s2 = " << sizeof ( s2 ) << std :: endl ;
	std :: cout << "Size of s3 = " << sizeof ( s3 ) << std :: endl ;
}