import java.util.regex.Matcher; import java.util.regex.Pattern;

public class reggix {

public static String derive(String formula)
{
    String regex = "\\((.+)\\)\\^(\\d+)";
    Pattern pattern = Pattern.compile(regex);
    Matcher m = pattern.matcher(formula);
    if(m.find())
    {

    String base = m.group(1);
    double exponent = Double.parseDouble(m.group(2));

    return exponent+ "("+base+")^"+(exponent - 1) + "(" + derive(base)+")";
    }
    return "d(" + formula + ")/dx";
}
public static void main(String[] args) {
    // TODO Auto-generated method stub
    System.out.println(derive("(x+5)^5"));

}

}