Tear list in a half - GetRange, RemoveRange - Lists

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
//You will receive a list of integers on the first input line (space-separated). Your task is to separate the list into two parts and //perform the following operations
namespace Tear_list_in_half
{
    class Program
    {
        static void Main(string[] args)
        {
            List<int> input = Console.ReadLine().Split().Select(int.Parse).ToList();
            List<int> tempList = input.GetRange(input.Count / 2, input.Count / 2);
            input.RemoveRange(input.Count / 2, input.Count / 2);
            for (int i = 0; i < tempList.Count; i++)
            {
                int firstDigit = tempList[i] / 10;
                input.Insert(i*3, firstDigit);
                int secondDigit = tempList[i] % 10;
                input.Insert(i * 3 + 2, secondDigit);
            }
            Console.WriteLine(string.Join(" ", input));
        }
    }
}