using System;
public class Test
{
public static void Main()
{
var fl = .000012;
Console.WriteLine("{0}", fl);
Console.WriteLine("{0:F10}", fl);
Console.WriteLine("{0:F}", fl);
Console.WriteLine("{0:0.################}", fl);
}
}
dXNpbmcgU3lzdGVtOwoKcHVibGljIGNsYXNzIFRlc3QKewoJcHVibGljIHN0YXRpYyB2b2lkIE1haW4oKQoJewoJCXZhciBmbCA9IC4wMDAwMTI7CgkJQ29uc29sZS5Xcml0ZUxpbmUoInswfSIsIGZsKTsKCQlDb25zb2xlLldyaXRlTGluZSgiezA6RjEwfSIsIGZsKTsKCQlDb25zb2xlLldyaXRlTGluZSgiezA6Rn0iLCBmbCk7CgkJQ29uc29sZS5Xcml0ZUxpbmUoInswOjAuIyMjIyMjIyMjIyMjIyMjI30iLCBmbCk7Cgl9Cn0=