How to get difference between two array without using linq or Set oper

I work on csharp
I have two arrays of string

A1 = [Watermelon, Apple, Mango, Guava, Banana]
A2 = [Orange, Kiwi, Apple, Watermelon]

i need to write code by csharp get difference between two arrays
and display difference between two arrays but without using linq or set operator

expected result

Mango

Guava

Orange

Kiwi

namespace MSTestProject
{
[TestClass]
public class UnitTest1
{
[TestMethod]
public void Test()
{
var list = GetListDifference();
foreach (var item in list)
{
Console.WriteLine(item);
}
}
public List<string> GetListDifference()
{
var list1 = new List<string> { "Watermelon", "Apple", "Mango", "Guava", "Banana" };
var list2 = new List<string> { "Orange", "Kiwi", "Apple", "Watermelon" };
var elements = new List<string>();
foreach (var item1 in list1)
{
foreach (var item2 in list2)
{
if (item1 == item2)
{
elements.Add(item1);
}
}
}
if (elements.Count > 0)
{
foreach (var item in elements)
{
list1.Remove(item);
list2.Remove(item);
}
}
var result = new List<string>();
result.AddRange(list1);
result.AddRange(list2);
return result;
}
}
}

var list1 = new List<string> { "Watermelon", "Apple", "Mango", "Guava", "Banana" };
var list2 = new List<string> { "Orange", "Kiwi", "Apple", "Watermelon" };
var elements = new List<string>();
foreach (var item1 in list1)
{
foreach (var item2 in list2)
{
if (item1 == item2)
{
elements.Add(item1);
}
}
}
if (elements.Count > 0)
{
foreach (var item in elements)
{
list1.Remove(item);
list2.Remove(item);
}
}
var result = new List<string>();
result.AddRange(list1);
result.AddRange(list2);
return result;

Try this

thank you for reply

this is correct result

but this solution with linq

i don't need solution with linq or set

i need it with any solution without linq or set operator

Try this

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