ladder

# 56 ladders in 1; 7 torches in 2
turtle.select(1)
for j=1,56 do
    turtle.digDown()
    turtle.down()
    turtle.dig()
    turtle.place()
end
turtle.select(2)
for i=1,7 do
    for j=1,8 do
        turtle.up()
    end
    turtle.placeDown()
end