simple password checker redstone

local password = "1234"
local output = "right"

while true do
  term.clear()
  term.setCursorPos(1,1)
  print("Passwort: ")
  input = read("*")
  if input == password then
    rs.setOutput(output, true)
    sleep(2)
    rs.setOutput(output, false)
  end
end