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public class DequeExample {
    public static void main(String[] args) {
        Deque<String> deque = new ArrayDeque<>();

        // Adding elements to the front
        deque.addFirst("one");
        deque.addFirst("two");

        // Adding elements to the end
        deque.addLast("three");
        deque.addLast("four");

        // Printing the deque
        System.out.println("Deque: " + deque); // Output: Deque: [two, one, three, four]

        // Removing elements from the front
        String firstElement = deque.removeFirst();
        System.out.println("Removed from front: " + firstElement); // Output: Removed from front: two

        // Removing elements from the end
        String lastElement = deque.removeLast();
        System.out.println("Removed from end: " + lastElement); // Output: Removed from end: four

        System.out.println("Deque after removals: " + deque); // Output: Deque after removals: [one, three]
    }
}