IN C++. Describe the output of the following series of stack operations: push(5), push(3), pop(), push(2), push(8), pop(), pop(), push(9), push(1), pop(), push(7), push(6), pop(), pop(), push(4), pop(), pop().

Appartently the answer to this is 3, 8, 2, 1, 6, 7, 4, 9. I am not sure how to get to this. Please help, thank you.