Differences between SetCursorPosition and CursorTop, CursorLeft in C #

I have a question with the following example, I do not understand what exactly CursorTop and CursorLeft do not do SetCursorPosition .

using System;

class Sample 
{
    protected static int origRow;
    protected static int origCol;

    protected static void WriteAt(string s, int x, int y)
    {
        try{
            Console.SetCursorPosition(origCol+x, origRow+y);
            Console.Write(s);
        }catch (ArgumentOutOfRangeException e){
            Console.Clear();
            Console.WriteLine(e.Message);
        }
    }

    public static void Main() 
    {
        Console.Clear();
        origRow = Console.CursorTop;
        origCol = Console.CursorLeft;

        WriteAt("+", 0, 1);
    }
}