iterative C# implementation of a Fibonacci sequence

fibonacci.cs

public static int Fibonacci(int n)
{
	int a = 0;
	int b = 1;
	// In N steps compute Fibonacci sequence iteratively.
	for (int i = 0; i < n; i++)
	{
	    int temp = a;
	    a = b;
	    b = temp + b;
	}
	return a;
}