function shear()
  turtle.select(1)
  turtle.attack()
  turtle.turnRight()
  turtle.attack()
  turtle.turnRight()
  turtle.attack()
  turtle.turnRight()
  turtle.attack()
  turtle.turnRight()
end

function clearInv()
  for i = 1,16,1 do
    turtle.select(i)
    turtle.dropDown()
  end
end

while true do
  shear()
  clearInv()
  sleep(30)
end