Find The Smallest And Largest Number In C#

using System;
class Program
{
static void Main()
{
int i;
int[] a = new int[30]; // Array Declaration in C#
Console.Write("Enter the Number of values to find Smallest and Largest Number: ");
int n = Convert.ToInt16(Console.ReadLine()); // read the string value and convert it in to integer
//Reading the values one by one
for (i = 1; i <= n; i++)
{
Console.Write("Enter the No " + i + ":");
a[i] = Convert.ToInt16(Console.ReadLine());
}
for (i = 1; i <= n; i++)
{
for (int j = 1; j <= n - 1; j++)
{
if (a[j] > a[j + 1])
{
int temp = a[j];
a[j] = a[j + 1];
a[j + 1] = temp;
}
}
}
//Display the Smallest value
Console.WriteLine("The smallest Value is "+a[1]);
//Display the Biggest Value
Console.WriteLine("The Largest Value is " + a[n]);
//Waiting for output
Console.ReadKey();
}
}