#include <vector>
#include <iostream>

class parent
{
	public:
		void print();
		virtual void generate() = 0;
	protected:
		std::vector<int> seq;
};

void parent::print()
{
	generate();
	for (size_t i = 0; i < seq.size(); ++i)
	{
		std::cout << seq[i] << " ";
	}
	std::cout << std::endl;
}

class child1:
	public parent
{
	public:
		void generate();
};

void child1::generate()
{
	seq.assign(10, 5);
}

class child2:
	public parent
{
	public:
		void generate();
};

void child2::generate()
{
	seq.resize(10);
	for (size_t i = 0; i < 10; ++i)
	{
		seq[i] = i;
	}
}

int main()
{
	child1 c1;
	child2 c2;
	c1.print();
	c2.print();
	return 0;
}