using System;
using System.Text.RegularExpressions;
public class Test
{
public static void Main()
{
String input = @"SMOOSH ""A"" AN ""B"" AN ""C"" AN ""D""";
Regex rgx = new Regex(@"(?:(?:\s+)?(?<smoosh>SMOOSH)\s+|(?<!^)\G) *(?:AN)* *""?([^""]*)""?");
foreach (Match m in rgx.Matches(input))
Console.WriteLine(m.Groups[1].Value);
}
}
dXNpbmcgU3lzdGVtOwp1c2luZyBTeXN0ZW0uVGV4dC5SZWd1bGFyRXhwcmVzc2lvbnM7CiAKcHVibGljIGNsYXNzIFRlc3QKewpwdWJsaWMgc3RhdGljIHZvaWQgTWFpbigpCnsKIAogClN0cmluZyBpbnB1dCA9IEAiU01PT1NIICIiQSIiIEFOICIiQiIiIEFOICIiQyIiIEFOICIiRCIiIjsKIApSZWdleCByZ3ggPSBuZXcgUmVnZXgoQCIoPzooPzpccyspPyg/PHNtb29zaD5TTU9PU0gpXHMrfCg/PCFeKVxHKSAqKD86QU4pKiAqIiI/KFteIiJdKikiIj8iKTsKIApmb3JlYWNoIChNYXRjaCBtIGluIHJneC5NYXRjaGVzKGlucHV0KSkKQ29uc29sZS5Xcml0ZUxpbmUobS5Hcm91cHNbMV0uVmFsdWUpOwogCn0KfQ==