Move 2 ushort to 1 int, C#

Move 2 ushort to 1 int

//Rextester.Program.Main is the entry point for your code. Don't change it.
//Compiler version 4.0.30319.17929 for Microsoft (R) .NET Framework 4.5

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;

namespace Rextester
{
    public class Program
    {
        public static void Main(string[] args)
        {
            //Your code goes here           
            ushort[] arrLect = new ushort[4];
            arrLect[0] = 15;
            arrLect[1] = 240;
            arrLect[2] = 3840;
            arrLect[3] = 61440;
            
            for (int iArr = 0; iArr < arrLect.Length; iArr++)
            {
                Console.WriteLine("BIN: " + Convert.ToString(arrLect[iArr], 2).PadLeft(16, '0') + " - DEC: " + arrLect[iArr].ToString());
            }
            
            int val = 0;
            ushort mask = (ushort)(1 << 0);
            
            val |= arrLect[0] & mask;
            val |= (arrLect[0] & mask) << 16;
            
            Console.WriteLine("");
            Console.WriteLine("BIN: " + "| 7|| 6|| 5|| 4|| 3|| 2|| 1|| 0|");
            Console.WriteLine("BIN: " + Convert.ToString(mask, 2).PadLeft(32, '0') + " - DEC: " + mask.ToString());
            Console.WriteLine("BIN: " + Convert.ToString(val, 2).PadLeft(32, '0') + " - DEC: " + val.ToString());
        }
    }
}


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