Chapter 6.13, Problem 6.22CP

What is the output of the following program?

#include <iostream>

using namespace std;

void test(int = 2, int = 4, int = 6);

int main()

{

test();

test(6);

test(3, 9);

test(1, 5, 7);

return 0;

}

void test (int first, int second, int third)

{

first += 3;

second += 6;

third += 9;

cout << first << " " << second << " " « third << endl;

}