include <string>
  include <iostream>
  using namespace std;
  
  int main(int argc, char** argv)
  {
    string str1;
  
    str1.insert(str1.end(), 'h');
    str1.insert(str1.end(), 'e');
    str1.insert(str1.end(), 'l');
    str1.insert(str1.end(), 'l');
    str1.insert(str1.end(), 'o');
  
    for (string::const_iterator it = str1.begin(); it != str1.end(); ++it) {
      cout << *it;
    }
    cout << endl;
  
    return (0);
  }