static void Main(string[] args)
{
int count = int.Parse(Console.ReadLine());
var collection = new GenericCollection <int>();
for (int i = 0; i < count; i++)
{
var element = int.Parse(Console.ReadLine());
collection.AddElement(element);
}
string[] indexes = Console.ReadLine().Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
int firstIndex = int.Parse(indexes[0]);
int secondIndex = int.Parse(indexes[1]);
collection.SwapElements(firstIndex, secondIndex);
collection.Print();
}
