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

public class Main {

    public static void main(String[] args) throws IOException {
        System.out.println("args[0] = " + args[0]);
        System.out.println("args[1] = " + args[1]);
        BufferedReader bufferedReader = new BufferedReader(new FileReader(args[0]));
        PrintWriter printWriter = new PrintWriter(new FileWriter(args[1]));
        Pattern pattern = Pattern.compile("(?!://)([a-zA-Z0-9-_]+\\.)*[a-zA-Z0-9][a-zA-Z0-9-_]+\\.[a-zA-Z]{2,11}?$");
        for (String lineStr = bufferedReader.readLine(); lineStr != null; lineStr = bufferedReader.readLine()) {
            Matcher matcher = pattern.matcher(lineStr);
            if (matcher.find()) {
                String[] splitStrs = matcher.group().split("\\.");
                StringBuilder reversedStr = new StringBuilder(splitStrs[splitStrs.length - 1]);
                for (int i = splitStrs.length - 2; i >= 0; i--) {
                    reversedStr.append(".");
                    reversedStr.append(splitStrs[i]);
                }
                printWriter.println(reversedStr);
            }

        }
        bufferedReader.close();
        printWriter.close();
    }
}