Basment

local i=8
local y=2
while true do
        turtle.refuel()
        turtle.dig()
        turtle.forward()
        turtle.digUp()
        turtle.turnLeft()
        for i=15,1,-1 do
            turtle.dig()
            turtle.forward()
            turtle.digUp()
        end
        turtle.turnRight()
        turtle.turnRight()
        turtle.up()
        turtle.digUp()
        turtle.up()
        turtle.digUp()
        for i=15,1,-1 do
            turtle.dig()
            turtle.forward()
            turtle.digUp()
        end
        turtle.turnLeft()
        turtle.down()
        turtle.down()
end