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

#include <iostream>
#include <memory>
#include <algorithm>
using namespace std;
int main ()
{
    int numbers[] = {1, 5, 4, 5};
    pair <int*, ptrdiff_t> result = get_temporary_buffer<int>(4);
    if (result.second > 0)
    {
        uninitialized_copy (numbers, numbers + result.second, result.first);
        sort (result.first, result.first + result.second);
        for (int i = 0; i < result.second; i++)
            cout << result.first[i] << " ";
        return_temporary_buffer (result.first);
    }
    return 0;
}