using System;
public class Program
{
public static void Main()
int[] a =new int[] {5,7,9,7,8};
int largest = int.MinValue;
int second = int.MinValue;
foreach(int i in a){
if(i> largest)
second = largest;
largest = i;
}
else if( i > second )
second = i;
Console.WriteLine("Second Largest number = {0}",second);