#include <iostream>
#include <vector>
using namespace std;

int main() {
	vector<int> abc;
	abc = { 5, 10, 15, 20 };
	abc.resize(4);
	std::cout << *(abc.end()+100) << std::endl;
	*(abc.end()+100) = 10;
	std::cout << abc.back() << std::endl;
	std::cout << *(abc.end()+100) << std::endl;
	std::cout << "Capacity: " << abc.capacity() << std::endl;
	std::cout << "Size: " << abc.size() << std::endl;
	return 0;
}