//hieraus natuerlich eine O.java erstellen...
public class O
{
	private static int f4(int n)
	{
		int counter = 0;
		int step = 0;
		for (step = n; n > 0; n /=2)
			for (int start = 0; start < step; start++)
				for (int i = start; i < n; i+=step)
					counter++;
		return counter;
	}
	
	public static void main(String args[])	
	{		
		System.out.println(f4(10000));
	}
}