FoldArray

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace FoldAndSum
{
    class FoldAndSum
    {
        static void Main(string[] args)
        {
            int[] nums = Console.ReadLine().Split(' ').Select(int.Parse).ToArray();
            int[] leftPart = new int[nums.Length / 4];
            int[] midPart = new int[nums.Length / 2];
            int[] rightPart = new int[nums.Length / 4];
            var counter = 0;
            //left part folded
            while (counter < leftPart.Length)
            {
                leftPart[counter] = nums[counter];
                counter++;
            }
            counter = 0;
            //right part folded
            while (counter < rightPart.Length)
            {
                rightPart[counter] = nums[nums.Length-1-counter];
                counter++;
            }
            Console.WriteLine(string.Join(" ", leftPart));
            Console.WriteLine(string.Join(" ", rightPart));
        }
    }
}