A woman's shoe that is size x in country A is size s(x) in country B, where s(x)=x-16. A woman's shoe that is size x in country B is size p(x) in country C, where p(x)=x-3.3. Find a function that will convert country A shoe size to country C shoe size. The expression for the function is (Use integers or decimals for any numbers in the expression.)