Задача. Побитовая арифметика

GetAnswerWithTest.cs

using System;
					
public class Program
{
	public static int GetAnswerWithTest(int k, int n)
	{
		int result = k << n;
		int testResult = (int)(k * Math.Pow(2, n));
		if (result != testResult)
		{
			throw new Exception("Error!");
		}
		return result;
	}
	
	public static void Main()
	{
		Console.WriteLine("UniLecs");
		Console.WriteLine(string.Format("Answer = {0}", GetAnswerWithTest(1, 4)));   // 16
		Console.WriteLine(string.Format("Answer = {0}", GetAnswerWithTest(3, 4)));   // 48
		Console.WriteLine(string.Format("Answer = {0}", GetAnswerWithTest(3, 5)));   // 95
		Console.WriteLine(string.Format("Answer = {0}", GetAnswerWithTest(4, 6)));   // 256
		Console.WriteLine(string.Format("Answer = {0}", GetAnswerWithTest(10, 10))); // 10240
		
		Console.WriteLine(string.Format("Answer = {0}", GetAnswerWithTest(1000, 20))); // 1048576000
	}
}