✅ help with 2D arrays

using System;
using System.Collections.Generic;


namespace CSharp
{
    class Program
    {
        static void Main(string[] args)
        {       
            
           int[,] arr = { {1, 2, 3}, {4, 5, 6} };

           foreach (int i in arr){
                Console.WriteLine(arr[i]);
           }
        }
    }
}

using System;
using System.Collections.Generic;


namespace CSharp
{
    class Program
    {
        static void Main(string[] args)
        {       
            
           int[,] arr = { {1, 2, 3}, {4, 5, 6} };

           foreach (int i in arr){
                Console.WriteLine(arr[i]);
           }
        }
    }
}