03.Zig-Zag Arrays (C# Shell App Paste)

using System;
using System.IO;
using System.Linq;
using System.Collections.Generic;

namespace CSharp_Shell
{

    public static class Program
    {
        public static void Main()
        {
           int n = int.Parse(Console.ReadLine());
           int[] arrA = new int[n];
           int[] arrB = new int[n];

           for(int i=0; i<n;i++)
           {
              int[] arr = Console.ReadLine()
               .Split()
               .Select(int.Parse)
               .ToArray();


               if(i%2!=0)
               {
                   arrA[i] = arr[0];
                   arrB[i] = arr[1];

               }

               else
               {
                   arrA[i] =arr[1];
                   arrB[i] = arr[0];

               }
           }

           Console.WriteLine(string.Join(" ", arrA));
           Console.WriteLine(string.Join(" ", arrB));
        }
    }
}