startup

rednet.open("left")

while true do
  term.clear()
  term.setCursorPos(1,1)
  print("FL01 --> FL02 = 32")
  print("FL01 --> FL03 = 51")
  print("FL02 --> FL01 = -32")
  print("FL02 --> FL03 = 19")
  print("FL03 --> FL01 = -51")
  print("FL03 --> FL02 = -19")
  write("> ")
  input = tonumber(read())
  if input > 0 then
    for i = 1, input do
      rednet.send(37, "ping")
      sleep(0.5)
    end
  elseif input < 0 then
    input = input * -1
    for i = 1, input do
      rednet.send(38, "ping")
      sleep(0.5)
    end
  else
    print("has to be not 0")
  end
end