<|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
Read the given list and filter out the elements containing the number '3'.
mylist = [13, 23, 32, 31, 14]<|im_end|>
<|im_start|>assistant
filteredlist = []
for num in mylist:
    if '3' not in str(num):
        filteredlist.append(num)

print(filteredlist)<|im_end|>
