dig2

for i=0, 55 do
  for i=0, 2 do
    turtle.digDown()
    turtle.forward()
  end
  turtle.digDown()
  turtle.turnRight()
  turtle.forward()
  turtle.digDown()
  turtle.turnRight()

  for i=0, 2 do
    turtle.forward()
    turtle.digDown()
  end

  turtle.turnLeft()
  turtle.forward()
  turtle.digDown()
  turtle.turnLeft()

  for i=0, 2 do
    turtle.forward()
    turtle.digDown()
  end

  turtle.turnLeft()
  turtle.forward()
  turtle.forward()
  turtle.turnLeft()
  for i=0, 2 do
    turtle.forward()
  end
  turtle.turnRight()
  turtle.turnRight()
  turtle.digDown()
  turtle.down()
end

for i=0, 55 do
  turtle.up()
end

for i=0, 3 do
  turtle.back()
end