import java.util.Scanner;

public class Main {

	public static void main(String[] args) {

		Scanner input = new Scanner(System.in);

		System.out.printf("Input the queue size: ");
		int size = input.nextInt();

		Queue que = new Queue(size);

		while (true) {
			System.out.println("\n1. Enqueue\n2. Dequeue\n3. View Queue\n");
			int choice = input.nextInt();

			if (choice == 1) {
				System.out.printf("Value to insert: ");
				int value = input.nextInt();
				que.enqueue(value);
			}
			else if (choice == 2) {
				que.dequeue();
			}
			else if (choice == 3) {
				que.view_queue();
			}
			else {
				break;
			}
		}
		input.close();
	}
}