python 3.6 beginner level Given a variable n that is associated with a positive integer and a variable s that is associated with the empty string, write some statements that use a while loop to associate s with a string consisting of exactly 2n asterisks (*) . (So if n were associated with 4 then s would, in the end, be associated with "********" . I have tried: s="" n=0 while n<2*n: s=s+"*" n+=1 based on a previous answer to a similar question and it is incorrect. Please help.