class Queue:
  
  def __init__(self, size):
    self.queue = []
    self.size = size
    
  def enqueue(self, param):
    if(len(self.queue) < self.size):
        self.queue.append(param)
        print("Current queue: ", self.queue)
    else:
        print("Queue is full remove some items to insert.")
  
  def dequeue(self):
    if(not self.isEmpty()):
      curr_element = self.queue.pop(0)
      print("Element removed:", curr_element)
      print("Current queue: ", self.queue)
    else:
      print("Queue is empty add elements in the queue.")
  
  def isEmpty(self):
    return len(self.queue) == 0
  
  def peek(self):
    if(not self.isEmpty()):
      print("First element in the queue:", self.queue[0])
    else:
      return None

def test():
  my_queue = Queue(5)
  
  while(True):
    print("Please give your choice")
    print("1. Insert, 2. Remove, 3. Peek")
    user_input = input("Please give your input:")
    
    if(user_input == "1"):
      curr_element = input("Give element to insert:")
      my_queue.enqueue(curr_element)
      
    elif(user_input == "2"):
      my_queue.dequeue()
    
    elif(user_input == "3"):
      my_queue.peek()
     
    print("=======================================================")

test()