#include <iostream>
#include <string>
#include <deque>
using namespace std;
int main(){
	deque<string> a;
	a.push_back("First");
	a.push_back("Second");
	for(string x : a){
		cout << x << " "; 
	}
	cout << endl;
	auto it = a.begin(); // auto = std::deque<string>::iterator
	a.insert(it + 1, "Insert");
	a.push_front("Naught");
	a.push_back("Last");
	for(it = a.begin(); it != a.end(); it++){
		cout << *it << " ";
	}
	cout << endl;
	return 0;
}