hi . i need help.You are asked to implement a set of programs to simulate a group of users being logged onto a computer network. Users
may be added, deleted, modified, displayed and searched for at any time. A method to test whether a user’s name is a
palindrome (a string that reads the same from left to right as right to left) should also be included. Finally, a logout feature
should be added that continuously logs out users at random every three seconds. The users should be maintained within a
doubly linked list. You should modify the files supplied with this exercise to create a class for a circular doubly linked list,

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