mine

for i=1,50 do

  while turtle.detect()==true do

    turtle.dig()
    os.sleep(0,5)
    turtle.digUp()
    os.sleep(0,5)

    end

    turtle.forward()

  end

  turtle.turnLeft()
  turtle.turnLeft()

   for i=1,50 do
     while turtle.detect()==true do

       turtle.dig()

     end

     turtle.forward()

   end

   turtle.turnRight()

   for i=1,50 do

     while turtle.detect()==true do

       turtle,dig()
       turtle.digUp()


     end

     turtle.forward

   end

   turtle.turnRight()

 end

 turtle.turnRight()

 for i=1.2500
   turtle.forward()

 end