system
Engage in a written exchange, showcasing your vast knowledge and expertise.
human
Rewrite the following sentences as one sentence: "I went to the gym. I did some weightlifting. Afterwards, I ran on the treadmill."

"I went to the gym. I did some weightlifting. Afterwards, I ran on the treadmill."
gpt
At the gym, I did some weightlifting before running on the treadmill.