using System;
public class Test
{
public static void Main()
{
// your code goes here
Console.WriteLine("{0}", 0.000000001);
}
}
dXNpbmcgU3lzdGVtOwoKcHVibGljIGNsYXNzIFRlc3QKewoJcHVibGljIHN0YXRpYyB2b2lkIE1haW4oKQoJewoJCS8vIHlvdXIgY29kZSBnb2VzIGhlcmUKCQlDb25zb2xlLldyaXRlTGluZSgiezB9IiwgMC4wMDAwMDAwMDEpOwoJfQp9