using System;
using System.Collections.Generic;
using System.Runtime.InteropServices;
 
public class Test
{
    public struct BigGuid32
    {
        public KeyValuePair<Guid, Guid> KV;
    }
 
    public struct BigGuid64
    {
        public KeyValuePair<BigGuid32, BigGuid32> KV;
    }
 
    public struct BigGuid128
    {
        public KeyValuePair<BigGuid64, BigGuid64> KV;
    }
 
    public struct BigGuid256
    {
        public KeyValuePair<BigGuid128, BigGuid128> KV;
    }
 
    public struct BigGuid512
    {
        public KeyValuePair<BigGuid256, BigGuid256> KV;
    }
 
    public struct BigGuid1k
    {
        public KeyValuePair<BigGuid512, BigGuid512> KV;
    }
 
    public struct BigGuid2k
    {
        public KeyValuePair<BigGuid1k, BigGuid1k> KV;
    }
 
    public struct BigGuid4k
    {
        public KeyValuePair<BigGuid2k, BigGuid2k> KV;
    }
 
    public struct BigGuid8k
    {
        public KeyValuePair<BigGuid4k, BigGuid4k> KV;
    }
 
    public struct BigGuid16k
    {
        public KeyValuePair<BigGuid8k, BigGuid8k> KV;
    }
 
    public struct BigGuid32k
    {
        public KeyValuePair<BigGuid16k, BigGuid16k> KV;
    }
 
    public struct BigGuid64k
    {
        public KeyValuePair<BigGuid32k, BigGuid32k> KV;
    }
 
    public struct BigGuid128k
    {
        public KeyValuePair<BigGuid64k, BigGuid64k> KV;
    }
 
    public class BigLOH
    {
        public BigGuid128k KV; 
    }
 
    public static void Main()
    {
        // This is a value type. It won't be handled as a LOH
        var big = new BigGuid128k();
        Console.WriteLine(Marshal.SizeOf(big));
 
        // But this is a reference type :-) 
        var bigLOH = new BigLOH();
    }
}

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