os.pullEvent = os.pullEventRaw
local pullEvent = os.pullEvent
os.pullEvent = os.pullEventRaw
os.pullEvent = pullEvent
local opentime = 10
os.pullEvent = os.pullEventRaw
local pullEvent = os.pullEvent
os.pullEvent = os.pullEventRaw
os.pullEvent = pullEvent
  yn = read()
local yn = "y"
while true do
 term.clear()
 term.setCursorPos(1,1)
print("Type Y to leave.")
  yn = read()
  rs.setOutput("back", true)
  rs.setOutput("left", true)
  sleep(opentime)
  rs.setOutput("back", false)
  rs.setOutput("left", false)
end