C89

Not long after she fell asleep tonight, Xiao Jingran fell into a state of confusion. When Xiao Jingran opened her eyes, she saw a small path, which was very narrow and very eye-catching in the middle of the darkness. After a moment of confusion, she stepped onto the small path.

Xiao Jingran walked for a long time without seeing the end of the road. Just as he was wondering if he should go on