turtleDown

j=0

function ddown()
    while(not turtle.down()) do
        turtle.digDown()
    end
    if not turtle.detectDown() then
        turtle.select(1)
        turtle.placeDown()
    end
    j=j+1
end

function fforward()
    while(not turtle.forward()) do
        turtle.dig()
    end
end


while(true) do
    ddown()
    fforward()
    if(j==8) then
        turtle.turnRight()
        turtle.turnRight()
        turtle.select(2)
        turtle.place()
        turtle.turnRight()
        turtle.turnRight()
    end
    if turtle.detectUp() then
        turtle.digUp()
    end
end