using System;
public class Program
{
public static void Main()
Console.WriteLine("Hello World");
int[][] jaggedArray2 = new int[][]{
new int[] { 1, 3, 5 },
new int[] { 0, 2, 4 },
new int[] { 11, 22,25 }
};
Console.WriteLine(DiagonalSum(jaggedArray2));
}
public static int DiagonalSum(int[][] mat) {
int i =0;
int j = mat[0].Length-1;
int sum = 0;
// To Do Code Here
return sum;