Your parents have given you AUD 20,000 to invest in the share market. After doing some research, you have narrowed down your choices to two stocks: Woolworth and Coles. The expected return on Woolworth stock is 15%, and the expected return on Coles stock is 10%. If you want to create a portfolio of these two stocks that has an expected return of 12%, how much money will you have to invest in Woolworth and Coles?