while true do
  os.queueEvent("e")
  os.pullEvent()
  if (rs.getBundledInput("top") == 2117) or (rs.getBundledInput("top") == 2113) or (rs.getBundledInput("top") == 2049) or (rs.getBundledInput("top") == 1) then
    rs.setOutput("bottom", true)
  else
    rs.setOutput("bottom", false)
  end
end