while true do
 term.clear()
 term.setCursorPos(1, 1)
 print("Inserisci la password:")
 print("O il tuo ip sara' registrato")
 input = read("*")
 if input == "techislife" then
  redstone.setOutput("back", true)
  sleep(2)
  redstone.setOutput("back", false)
 end
end