#include <list> 
#include <iostream> 

int main() 
{ 
  std::list<char> l; 
  l.push_back('a'); 
  l.push_back('b'); 
  l.push_back('c'); 

  for (std::list<char>::iterator it = l.begin(); it != l.end(); ++it) 
    std::cout << *it << std::endl; 
}