def produce_binary_numbers(n):    numbers_queue = Queue()    numbers_queue.enqueue("1")    for i in range(n):        front = numbers_queue.front()        print("   ", front)        numbers_queue.enqueue(front + "0")        numbers_queue.enqueue(front + "1")        numbers_queue.dequeue()

def produce_binary_numbers(n):    numbers_queue = Queue()    numbers_queue.enqueue("1")    i = 0    while i < n//2 and not numbers_queue.is_empty():        i+=1        front = numbers_queue.dequeue()        print(front)        numbers_queue.enqueue(front + "0")        numbers_queue.enqueue(front + "1")            while not numbers_queue.is_empty() and i<n:        print(numbers_queue.dequeue())        i+=1