Check ifInFor or ForInIf

using System;
using System.Collections.Generic;

public static class Program
{
	public static void Main()
	{
		bool checkMe = false;
		List<int> integers = GetListOfInts(999999);

		Console.WriteLine("If in foreach");
		ifInForeach(checkMe, integers);

		Console.WriteLine("Foreach in if");
		foreachInIf(checkMe, integers);
	}

	public static List<int> GetListOfInts(int howMany){
		List<int> integers = new List<int>();

		for(int i = 0; i < howMany; i++){
			integers.Add(i);
		}

		return integers;
	}

	public static void ifInForeach(bool checkMe, List<int> integers){
		var watch = System.Diagnostics.Stopwatch.StartNew();

		foreach(int number in integers){
			int newNumber = 0;
			if(checkMe)
			{
				newNumber = number + number;
			}
			else
			{
				newNumber = number + 1;
			}
		}

		watch.Stop();
		var elapsedMs = watch.ElapsedMilliseconds;
		Console.WriteLine("Time for if in foreach: " + elapsedMs);
	}

	public static void foreachInIf(bool checkMe, List<int> integers){
		var watch = System.Diagnostics.Stopwatch.StartNew();

		if(checkMe)
		{
			foreach(int number in integers){
				int newNumber = 0;
				newNumber = number + number;
			}

		}
		else
		{
			foreach(int number in integers){
				int newNumber = 0;
				newNumber = number + 1;
			}
		}

		watch.Stop();
		var elapsedMs = watch.ElapsedMilliseconds;
		Console.WriteLine("Time for foreach in if: " + elapsedMs);
	}
}