Auto Cobbel Stone Farm

print("Sup, Made By TEC_NO!")
sleep(1)
shell.run('clear')
print("Dan The Auto Cobblestone Miner, Made By TEC_NO!")
os.setComputerLabel("Dan The Miner, Made By TEC_NO!")
label = ("Dan The Miner, Made By TEC_NO!")

while true do
if turtle.detectDown() then
turtle.digDown()
for i = 1, 16 do
  if i ~= nil then
    turtle.select(i)
    turtle.drop()
  end
end
print("Mined Detected Block, Made By TEC_NO!")
else
print("No Block Detected, Made By TEC_NO!")
end
sleep(0.048)
end