swap arrays given by the user

Question

using System;
using System.Collections.Generic;

namespace exercise_78
{
class Program
{
public static void Main(string[] args)
{
// DO NOT CHANGE THE FOLLOWING CODE!
int[] array = new int[5];
array[0] = 1;
array[1] = 3;
array[2] = 5;
array[3] = 7;
array[4] = 9;

int index = 0;
while (index < array.Length)
{
Console.WriteLine(array[index]);
index++;
}
Console.WriteLine("");
// Implement here
// asking for the two indices
// and then swapping them
Console.WriteLine("Give two indices to swap: ");
int n = Convert.ToInt32(Console.ReadLine());
int t = Convert.ToInt32(Console.ReadLine());
// DO NOT CHANGE THE FOLLOWING CODE!
Console.WriteLine("");
index = 0;
while (index < array.Length)
{
Console.WriteLine(array[index]);
index++;
}
}
}
}

anyone with code how to swap user input arrays