rednet.open("back")

while true do
	term.clear()
	term.setCursorPos(1,1)
	print("Enter command:")
	local input = read()
	if input=="forward" or input=="left" or input=="right" or input=="up" or input=="down" or input=="suck" or input=="mine" then
		rednet.send(19,input)
	else
		print("Invalid command")
	end
	sleep(2)
end