local component = require("component")
local event = require("event")
redstone=component.proxy(component.list("redstone")())

function growing(cmd)
    if cmd == "start" then
        redstone.setOutput(sides.north, 0)
        redstone.setOutput(sides.top, 0)
        print("Growing is started")
    elseif cmd == "stop" then
        redstone.setOutput(sides.north, 15)
        redstone.setOutput(sides.top, 15)
        print("Growing is stopped")
    else print("invalid command - use start or stop")
    end
end

while true do
  local cmd=io.read()
  if not cmd then return end
  if

  growing(cmd)
end