import java.util.*;
import java.util.regex.*;


class rTest {
  public static void main (String[] args) {

    String result  = "<input type=\"hidden\" name=\"token\" value=\"YToxOntzOjU\"/>";

    Pattern pattern = Pattern.compile("name=\"(token)\"[^>]*value=\"([^\"]+)\"", 2);
    Matcher matcher = pattern.matcher(result); 

    if (matcher.find()) {
       String value = matcher.group(2);
       System.out.println(value);
    }

  }
}