room

amount = read()
function diggin(amount)
    local i = 1
    for i=1,amount do
        turtle.dig()
        turtle.forward()
        turtle.digUp()
        turtle.up()
        turtle.digUp()
        turtle.down()
        turtle.down()
    end
end

diggin(amount)
turtle.turnRight()
amount = amount-1
diggin(amount)
turtle.turnRight()
diggin(amount)
turtle.turnRight()
amount = amount-1
diggin(amount)
turtle.turnRight()
amount = amount+1
amount = amount-1
diggin(amount)
turtle.turnRight()
diggin(amount)
turtle.turnRight()
diggin(amount)