#include <iostream>
#include <list>
using namespace std;


int main(void)
{
   list<int> ahel;
   ahel.push_back(0);              
   ahel.push_front(7);             
   ahel.insert(++ahel.begin(),2);     //Pärast esimest elementi
                                
   ahel.push_back(5);
   ahel.push_back(6);

   list<int>::iterator i;

   for(i=ahel.begin(); i != ahel.end(); ++i){cout << *i << " ";}
   cout << endl;
   ahel.sort();
   for(i=ahel.begin(); i != ahel.end(); ++i){cout << *i << " ";}
   cout << endl;
   cout << "Viimane: " << ahel.back() << endl;
   ahel.pop_back();
   cout << "Viimane: " << ahel.back() << endl;
   cout << "Esimene: " << ahel.front() << endl;
   ahel.pop_front();
   cout << "Elementide arv " << ahel.size() << endl;
   for(i=ahel.begin(); i != ahel.end(); ++i){cout << *i << " ";}
   cout << endl;   
   return 0;
}

/*
[jaagup@minitorn c]$ ./a.out
7 2 0 5 6
0 2 5 6 7
Viimane: 7
Viimane: 6
Esimene: 0
Elementide arv 3
2 5 6
*/