#include <iostream>
using namespace std;

int main() {
  int const items[] = {21, 42, 63};
  int const * item = items;
  int const * const end = items + sizeof(items) / sizeof(items[0]);
  switch (1) {
    case 0: do { cout << ", ";
    default: cout << *item; ++item; } while (item != end);
  }
  cout << endl << "I'm so sorry" << endl;
  return 0;
}