Can someone please help me


#1



Replace this line with your code. 
n = [[1, 2, 3], [4, 5, 6, 7, 8, 9]]
# Add your function here
def flatten(lists):
    results = ""
    for number in lists:
        for i in number:
            results.append(i)
    return results

print flatten(n)


#2

This should be an empty list [] not an empty string" ",

results = []


#3

thanks for contributing!


#4

has it worked? :slight_smile: