#4. What are the values of first and second at the end of the following code? How would you describe the net effect of the code statements in this exercise?

int first = 8;

int second = 19;

first = first + second;

second = first - second;

first = first - second;

# 5. Rewrite the code from the previous exercise to be shorter, by declaring the variables together and by using the special assignment operators (e.g., +=, -=, *=, and /=) as appropriate.