using System;

using System.Linq;

public class Program

{

    public static void Main()

    {

        long eventType = 137438953472;

        Console.WriteLine(GetEnumValue(eventType));

    }

    public static string GetEnumValue(long eventType) 

    {

        string binary = Convert.ToString(eventType, 2);

        int count = binary.Count(f => f == '0');

        return $"1 L << {count}";

    }

}