using System;
using System.Text.RegularExpressions;
public class Test
{
public static void Main()
{
var s = "I have a a string \\nThis is a new line\\nThis is another";
Console.Write(Regex.Unescape(s));
}
}
dXNpbmcgU3lzdGVtOwp1c2luZyBTeXN0ZW0uVGV4dC5SZWd1bGFyRXhwcmVzc2lvbnM7CgpwdWJsaWMgY2xhc3MgVGVzdAp7CglwdWJsaWMgc3RhdGljIHZvaWQgTWFpbigpCgl7CgkJdmFyIHMgPSAiSSBoYXZlIGEgYSBzdHJpbmcgXFxuVGhpcyBpcyBhIG5ldyBsaW5lXFxuVGhpcyBpcyBhbm90aGVyIjsKCQlDb25zb2xlLldyaXRlKFJlZ2V4LlVuZXNjYXBlKHMpKTsKCX0KfQ==