 So just like we've seen in the past if I could do a lookup that means that I can find a position in my my data structure of sort and that also means that I can do something like an Insert let's say for example since I tried to find 14 and it wasn't in there I want to do an insert on 14 so the reason why we kind of did that lookup first is because Now we can actually kind of do a traversal To find where we need to go. That's actually the first step to this entire process Look up until Node Available, and I'm just kind of using some terms there But I need to basically find when I can actually get added in well 14 again We do our same traversal that we've seen in the past. I get to this 13 And I see that 13 has no children now in my last video and when we are doing a lookup on 14 We would just throw an error throw a negative one in this regard since we see that 13 has no children and Is 14 is greater than I now know that 13 dot right? Can get added in? 14 let's say for example I did another one as well, so inserts 12 Well, guess what the same process comes into play. I'm doing exact same Traversal as before but since 12 is less than 13 in that regard It would be to the left The left child now one thing that we do have to look at with all this is whether or not this is classified as a Proper tree is this proper? Well, the way we would classify a proper tree is all nodes Have zero or Two children And if we kind of looked 50 has two children 15 has two children 10 has two children five has no children 13 to zero to two zero zero zero zero and so this is in fact proper But since you know I want to see the improper variation to this Let's say I came in and did an insert of 100 Well, as you can kind of guess pause the video maybe traverse this one on your own for a second and We traverse aha we traverse aha we traverse aha since 100 is greater than 99 It's gonna get added in to the right node And if I were to ask that same question again, is this proper? Well, no because here's a node that only has that has one child and I Need every single one so in this case now it is no longer proper We would classify it as in proper