# A robot encounters a door. If the door is locked, the robot
# should be instructed to turn around.  If instead the door is
# unlocked, the robot should be instructed to open the door and
# enter the room. Note, before entering the robot should determine
# whether the light is off. If it is off, the robot should be
# instructed to first turn on the light.

# Get status of the door
reply = input( 'Door (locked / unlocked): ' )

# Put in standard format -- all lowercase
door_sensor = reply.strip().lower()

# Based on door sensor take action
if ( door_sensor == 'locked' ) :
    # Cannot enter -- the door is locked
    print( 'Turn around' )
else : # door is unlocked
    # We can go in
    print( 'Open the door' )
    # We want to ask about the light sensor!
    # Need to get status of light sensor
    reply = input( 'Light(on/off): ' )
    light_sensor = reply.strip().lower()
    if ( light_sensor == 'off' ):
        print( 'Turn the light on' )
    else:
        pass
    print( 'Enter the room' ) # print this either way

    # Can enter because the door is open and the light is on

    pass

# All done