Question: It is not safe to simultaneously modify a linked list using two iterators. Find a situation where two iterators refer to the same linked list,

It is not safe to simultaneously modify a linked list using two iterators. Find a situation where two iterators refer to the same linked list, and when you add an element with one iterator and remove an element with the other, the result is incorrect.

Explain the problem by tracing the code and drawing a diagram.

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