mine

rednet.open("top")
   function breakWells()
      for i = 4, 19 do
        rednet,send(i,"go")
   end
  sleep(1)
end
rs.setBundledOutput("right", colors.orange)
for j = 10,1,-1 do
  sleep(1)
  print(j)
end
rs.setBundledOutput("right", 0)
sleep(1)
rs.setBundledOutput("right", colors.white)