In the class, the professor introduced three reasoning models: forward reasoning, backward reasoning, and the Chain of Thought (CoT). Please visit chat.deepseek.com and ask this AI a question about how forward reasoning and backward reasoning are related to the chain of thought (CoT). When asking this question, please click "DeepThink (R1)" so that the model can return its "thought" before the answer.

For this problem, you need to 1) copy and paste your question and the answer you got from DeepSeek R1, and 2) take a screenshot and upload it to demonstrate the "thought" of DeepSeek before answering your question.