I want to solve this question in C++ language

Create a program to store a list of integer numbers dynamically through a Circular Header linked list, your program should contain the following functions: 1- AddNode (int): Adds a new node at the end of the list. 2- Traverse 0 : Prints the values stored in the list. 3- void addBefore(int, int): Inserts a new node before a given value. Note: - Just attach the code for the third function in your answer. - You should also attach a screenshot of the program output