3x3 ComputerCraft Turtle

print("Starting Tunnelling!")
print("Refuelling!")
turtle.refuel()
print("Fuel Level: ".concat(turtle.getFuelValue()))
while turtle.getFuelLevel() > 0 do
turtle.dig()
turtle.forward()
turtle.digUp()
turtle.up()
turtle.digUp()
turtle.up()
turtle.turnLeft()
turtle.dig()
turtle.down()
turtle.dig()
turtle.down()
turtle.dig()
turtle.turnRight()
turtle.turnRight()
turtle.dig()
turtle.up()
turtle.dig()
turtle.up()
turtle.dig()
turtle.down()
turtle.down()
turtle.turnLeft()
end
print("Finished Tunnelling!")