public static void miniMaxSum(List<int> arr_list)
    {
        int[] arr = arr_list.Order().ToArray();
        long min = 0, max = 0;
        
        for(int i = 0; i < 4; i++){
            min += arr[i];
            max += arr[arr.Length - i - 1];
        }
        
        Console.WriteLine($"{min} {max}");
    }