A portfolio is composed of two stocks, A and B. Stock A has an expected return of 24% and a standard deviation of return of 36%, while stock B has an expected return of 16% and a standard deviation of return of 20%. The correlation coefficient between the returns on A and B is .45. Stock A comprises 35% of the portfolio, while stock B comprises 65% of the portfolio. What is the standard deviation of the return on this portfolio? Submit your answer in percentages, rounding up to the first two decimal points (in XX.XX format).