Ascending Order

using System;
using System.Collections.Generic;
using System.Text;

namespace ascending_order
{
class ascend
{
static void Main(string[] args)
{
int[] a=new int [20];
int t,i,j,n;
Console.WriteLine("\tASCENDING ORDER");
Console.WriteLine("\t***************");
Console.WriteLine("Enter the no of Elements");
n = int.Parse(Console.ReadLine());
Console.WriteLine("Enter the Elements one by One");
for (i = 1; i <= n; i++)
{
a[i] = int.Parse(Console.ReadLine());
}
Console.WriteLine("\nASCENDING ORDER");
for (i = 1; i <= n; i++)
{
for (j = i + 1; j <= n; j++)
{
if (a[i] > a[j])
{
t = a[i];
a[i] = a[j];
a[j] = t;
}
}
Console.WriteLine("{0}", a[i]);
}

}
}
}