Assume the following code fragment is part of a complete working program. After the statements are executed, what is the output?

stack intStack;

int x, y = 3;

intStack.push(8);

intStack.push(9);

intStack.push(y);

x = intStack.top();

intStack.pop();

intStack.push(18);

x = intStack.top();

intStack.pop();

intStack.push(22);

while (!intStack.empty())

{

y = intStack.top();

intStack.pop();

cout << y << " ";

}

cout << x << endl;