data structure in c language

In the following questions, the set of input data is based on your student ID. The set of numbers you will extract is as follows: N1 = 1st digit; N2 up to N7 = the set of pairs in your student ID; N8 = the last digit in your student ID. For example, if your student ID is 1180841, then show the extracted pairs in a table containing each pair of consecutive numbers as follows: Original St. Original 1st digit N2 N3 N4 Last digit St.ID 1180841 1 11 18 80 08 84 41 1 Question 1) a. Insert the sequence of generated numbers in the last step into an AVL tree starting with an empty tree and show all your steps. N1 N5 N6 b. Delete the number 11 from your tree. * For this part, consider that there is no redundancy of the generated pairs. For examples, if your student ID is 1180001, then consider the re is only one 00 and not two