filler

local function placeBlock()
        turtle.up()
        turtle.placeDown()
end

local function goDown()
    if turtle.detectDown() then
        turtle.forward()
    else
        turtle.down()
    end
end

local times = 0
print("z how deep?: ")
times = read()
    for i = 1, times do
        goDown(i)
        placeBlock(i)
end