How do I fix the numerical output?

See more:

C++

So, I have a small coding problem that has one minor thing that needs fixing
Basically you prompt the user to input an integer, and it outputs the sum as well as the individual digits.

So, it goes like this. If you input 123 it should output "1 2 3" and return a sum of 6
The problem is the code will output the numbers in reverse. I.e if I input 789 it will output 9 8 7. The sum output works just fine however. Just that little thing I need help with. The code's down below. I'm looking for another perspective on it :)

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

int main()
{
    //hold the number input, number and sum
    int num_input, sum, num, pwr;

    cout << "Enter a number" << endl;
    cin >> num_input;

    
    num_input = abs(num_input); //handle the negative numbers
    sum = 0;

    do
    {

        num = num_input % 10;
        sum += num;
        num_input = num_input / 10;
        cout << num << " ";

    } while (num_input > 0);

    cout << "The sum of the numbers are: " << sum << endl;
}

What I have tried:

Using arrays, while loops, for loops, vectors