#include <list>
#include <iostream>

int main() {
	std::list<int> alist;
	alist.push_back(0);
	alist.push_back(1);
	alist.push_back(2);

	std::list<int>::iterator iter = alist.begin();
	std::cout << *iter << std::endl;
	--iter;
	std::cout << *iter << std::endl;
}