public static void insertionSort2(int n, List<int> arr)
{
    for (int i = 1; i < n; i++)
    {
        for (int j = 0; j < i; j++)
        {
            if (arr[j] > arr[i])
            {
                var temp = arr[j];
                arr[j] = arr[i];
                arr[i] = temp;
            }
        }

        Console.WriteLine(string.Join(" ", arr));
    }
}