What will be the output of the following C++ code?

#include <iostream>
#include <deque>
using namespace std;
int main ()
{
    deque<int> mydeque (5);  
    deque<int>::reverse_iterator rit = mydeque.rbegin();
    int i = 0;
    for (rit = mydeque.rbegin(); rit!= mydeque.rend(); ++rit)
        *rit = ++i;
    for (deque<int> :: iterator it = mydeque.begin();
    it != mydeque.end(); ++it)
    cout << ' ' << *it;
    return 0;
}