#include <iostream>

#include <deque>

using namespace std;

​

int main() {

  // Create a deque called cars that will store strings

  deque<string> cars = {"Volvo", "BMW", "Ford", "Mazda"};

​

  // Get the first element

  cout << cars.front() << "\n";  // Outputs Volvo

​

  // Get the last element

  cout << cars.back() << "\n";  // Outputs BMW

  return 0;

}

​