General Grok Help

[AmineLS]

if room == "middle":
  print("Actions available: forward, backward, look")
  action = input("> ")
  if action == "forward":
    room = "end"
  elif action == "backward":
    room = "start"
  else:
    room = "middle"

This is the output:

Output:
 
Actions available: forward, look
> look
You are standing at the entrance to a long tunnel.
Actions available: forward, look
> forward
You are in the depths of the tunnel.
Actions available: forward, backward, look
> backward
You are standing at the entrance to a long tunnel.
Actions available: forward, look
> forward
You are in the depths of the tunnel.
Actions available: forward, backward, look
> look
You are in the depths of the tunnel.
Actions available: forward, backward, look
> forward 
You have escaped the tunnel. You win!

I am currently studying Grok The Dark Tunnel (Python)
Hour of Code: The Dark Tunnel, spent quiet some time, if anyone is able to point out what i am missing or misplaced please help, iv been getting so many syntax errors I really need your help guys !