#include <list> 
#include <utility> 
#include <iostream> 

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

  std::list<char>::iterator it = l.begin(); 
  std::advance(it, 1); 
  std::cout << *it << std::endl; 
}