Circular LinkedList Remove First Instance

[vivekpatani]

    list.addAtBegining(3);
    list.addAtBegining(2);
    list.addAtBegining(1);
    list.addAtEnd(4);
    list.addAtEnd(6);
    list.addAtPosition(5, 5);
    list.addAtEnd(6);
    list.addAtEnd(6);
    list.addAtEnd(6);
    list.removeAllInstances(6);
    list.removeFirst();
    list.removeLast();
    list.removeAtPosition(1);
    list.printListForward();
    list.removeFirstInstance(3);
    list.printListForward();
    list.addAtBegining(0);
    list.printListForward();

This is the input to reproduce the error.
Paste it into the main of circularLinkedListImplementation.