local pullEvent = os.pullEvent
os.pullEvent = os.pullEventRaw
local isiton = false
while true do
 term.clear()
 term.setCursorPos(1, 1)
 print("Please Enter Password:")
 input = read("*")
 if input == "passcode" then
  if isiton == false then
    redstone.setOutput("right", true)
    isiton = true
  else
    redstone.setOutput("right", false)
    isiton = false
  end
 elseif input == "terminate" then
   os.pullEvent = pullEvent
 end
end