With the use of following function you can get first 3 elements of the array

public void TakeExample()
{

int[] numbers = { 4, 23, 4, 5, 7, 8, 9, 12, 23, 45 };

var Numbers = numbers.Take(3);

Console.WriteLine("First 3 numbers:");

foreach (var n in Numbers)
{

Console.WriteLine(n);


}
}