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