#include <iostream>
#include <string>

using namespace std;

int main() {
   string phrase{"Hello World!"};

   for(size_t i = 0; i <= phrase.size(); ++i) {
      cout << i << " '"  << phrase.at(i) << "'"  << endl;
   }

   cout << "This line will never print out" << endl;

   return 0;
}