Where does return; in C# Methods safe the value?

Question

I am currently learning about Methods in C# and I have one issue. If I return a value, let's say, and integer, where is it safed? Does the Method itself contain the return value so I can use it? For example:

public static void Main(string[] args)
{
int number1=Convert.ToInt32(Console.ReadLine());
int number2=Convert.ToInt32(Console.ReadLine());
Console.WriteLine(Sum(number1,number2));
Console.ReadLine();
}

static int Sum(int number1, int number2)
{
return number1+number2;
}

Where is the return value stored? Can I call it later on?

EDIT: Is it a thing that the value isn't even safed? Just thought about that...

Answer 1

it is not stored, the value is just put in where you put it.
if you want to store it you need to use a variable
example:
int a=Sum(number1,number2);

Answer 2

Ok thanks a lot.