Enumeration, C# - rextester

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//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
{
    //This is true for any enumeation 
    //it doesnt matter if use for(int idx...; ++idx) or for each
    //Changing of enumeator will throw exception
    public class EnumerationRemove {
        List<int> AwesomeList = new List<int>() {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
        public void MyAwesomeListUpdateMethod(){
           List<int> SafeListAccordingToMe = AwesomeList;
            int LetBeitemToRemove  = 4;
            foreach(var item in SafeListAccordingToMe){
                if(item == LetBeitemToRemove)
                    UpdateWithNoProblemAccordingToMe(item);
            }
        }
        
        private void UpdateWithNoProblemAccordingToMe(int item){
            AwesomeList.Remove(item);
        }
        
    }
    public class Program
    {
        public static void Main(string[] args)
        {
            EnumerationRemove test = new EnumerationRemove();
            test.MyAwesomeListUpdateMethod();
        }
    }
}

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Compilation time: 0,12 sec, absolute running time: 0,11 sec, cpu time: 0,11 sec, average memory usage: 13 Mb, average nr of threads: 3