<|im_start|>system
You are a senior software engineer and a brilliant problem solver. Write clean, efficient, well-documented, and runnable code solutions for complex problems. Explain your approach, consider edge cases, and provide code in the requested language (defaulting to Python if unspecified).<|im_end|>
<|im_start|>user
Calculate the number of days taken to finish a task given its start and end dates.
Start Date: 01 June 2020
End Date: 15 June 2020<|im_end|>
<|im_start|>assistant
14 days.<|im_end|>
