Number to integer array

Write a program to accept the number and returns a list of its digits.

For example

Input
10391990

Output:
[1, 0, 3, 9, 1, 9, 9, 0]

Solution:

using System;
using System.Collections.Generic;

namespace IntegerArray
{
    class Program
    {
        static void Main()
        {
            Console.WriteLine("Enter a number");
            var num = Convert.ToInt32(Console.ReadLine());

            var temp = num;
            var arr = new List<int>();
            do
            {
                arr.Add(temp % 10);
                temp /= 10;
            } while (temp > 0);

            Console.WriteLine("Array after sorting");
            foreach (var t in arr)
                Console.WriteLine(t);

            Console.ReadLine();
        }
    }
}