still available so you're going a tree say a depth of Li is anything still available okay I picked this once you pick that you consider everything below it average so this is all done at this point nothing below there is available anymore this will consume tuna alin- li leaves of the expanded tree you can you know that as you count together how many leaves you're going to cover in this process is going to be this many on the left here we're told that this thing on the top holds true which means that this is smaller than 2 - L M which means that