Glass Input Computer

rednet.open("right")
redstone.setOutput("left", false)
while true do
  words = {}
  e, msg, d, b, c = os.pullEvent("chat_command")
  for word in msg:gmatch('%S+') do
    table.insert(words, word)
  end
  if words[1] ~= "goto" then
    print("Invalid command")
  else
    x = words[2]
    y = words[3]
    z = words[4]
    rednet.broadcast("incoming")
    if not rednet.receive(2) then
      print("Something went wrong!")
    end
    rednet.broadcast(x)
    rednet.broadcast(y)
    rednet.broadcast(z)
    id, msg = rednet.receive(2)
    if msg == "complete" then
      print("Successfully sent!")
    else
      print("Coords not received")
    end
  end
end