while true do
if turtle.detect() then
turtle.dig()
turtle.forward()
turtle.digUp()
turtle.turnLeft()
turtle.dig()
turtle.up()
turtle.dig()
turtle.turnRight()
turtle.turnRight()
turtle.dig()
turtle.down()
turtle.dig()
turtle.turnLeft()
print(turtle.getFuelLevel())
end
if turtle.getFuelLevel() <= 100 then
    if turtle.getItemCount(1) == 1 then
    else
        turtle.refuel(1)
        print(turtle.getFuelLevel())
    end
end
else if turtle.detect() == false then
turtle.forward()
end
end
    if turtle.detectDown() == true then

    else
        turtle.select(2)
        turtle.placeDown()
        turtle.select(1)
    end
end