using System; namespace ConsoleApp1 { internal class Program { public static void Main(string[] args) { int[,] numbersArray = { { 1, 2, 3 }, { 4, 5, 6 }, { 7, 8, 9 }, }; for (int i = 0; i < numbersArray.GetLength(0); i++) { Console.WriteLine(numbersArray[i,i]); } } } }