# 定义队列
queue = [1, 2, 3, 4, 5]

# 取出队首元素
first_element = queue.pop(0)

print(queue)

# 取出队首元素
second_element = queue.pop(0)

print(queue)

# 添加元素到队列
element = int(input())
queue.append(element)
print(queue)