Final

function RightMine()
    turtle.turnRight()
    turtle.dig()
    turtle.forward()
    turtle.turnRight()
end

function LeftMine()
    turtle.turnLeft()
    turtle.dig()
    turtle.forward()
    turtle.turnLeft()
end

function RightPlant()
    turtle.turnRight()
    turtle.back()
    turtle.place()
    turtle.turnRight()
end

function LeftPlant()
    turtle.turnLeft()
    turtle.back()
    turtle.place()
    turtle.turnLeft()
end

function Mine()
    turtle.select(1)
    turtle.dig()
    turtle.forward()
    for i=1, 9 do
        for i=1, 8 do
            for j=0,7 do
                turtle.dig()
                turtle.forward()
            end
            if i < 8 then
                if i % 2 == 0 then
                    LeftMine()
                else
                    RightMine()
                end
            end
        end
        if i < 9 then
            turtle.digUp()
            turtle.up()
            turtle.turnRight()
        end
    end
    MineHome()
end

function MineHome()
    turtle.forward()
    for i=0, 8 do
        if i < 8 then
            turtle.digDown()
            turtle.down()
        else
        turtle.down()
        end
    end
    turtle.turnRight()
    for i=0, 6 do
        turtle.forward()
    end
    turtle.turnLeft()
    turtle.back()
    Plant()
end

function Plant()
    for i=1, 8 do
        for j=0,7 do
        if turtle.getItemCount() < 3 then
            turtle.select(turtle.getSelectedSlot() + 1)
            end
            turtle.back()
            turtle.place()
        end
        if i < 8 then
            if i % 2 == 0 then
                LeftPlant()
            else
                RightPlant()
            end
        end
    end
    turtle.back()
    turtle.place()
    PlantHome()
end

function PlantHome()
    turtle.turnRight()
    for i=0, 6 do
        turtle.back()
    end
    turtle.turnRight()
    Transfer()
end

function Transfer()
    for i=9, 16 do
        turtle.select(i)
        turtle.drop(turtle.getItemCount() - 1)
    end
    turtle.select(1)
    turtle.turnRight()
    turtle.turnRight()
end
while true do
    if not turtle.compare() then
    Mine()
    end
end