Show the result of accessing the keys 159 in order in the sp

Show the result of accessing the keys 1,5,9 in order in the splay tree in following figure.

Methods:

1. 1--2--3

2. 1--2--4--6--5

3. 1--2--4--6--8--9

Other trees to join:

1. 1--2--4--10

2. 1--2--4--10--11--12--13

3. 1--2--4--6--8--7