// CPP program to illustrate
// push_front() function
#include <iostream>
#include <list>
using namespace std;
int main()
{
list<int> mylist{ 1, 2, 3, 4, 5 };
mylist.push_front(6);
// list becomes 6, 1, 2, 3, 4, 5
for (auto it = mylist.begin(); it != mylist.end(); ++it)
cout << ' ' << *it;
}