import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.io.PrintWriter;

public class Morse {

    public static void main(String[] args) throws FileNotFoundException, IOException {
        try (PrintWriter saida = new PrintWriter("morse.out")) {
            BufferedReader entrada;

            entrada = new BufferedReader(new FileReader("morse.in"));

            String linha;
            String morse[] = {".-", "-...", "-.-.", "-..", ".", "..-.", "--.", "....",
                "..", ".---", "-.-", ".-..", "--", "-.", "---", ".--.", "--.-", ".-.",
                "...", "-", "..-", "...-", ".--", "-..-", "-.--", "--.."};

            while ((linha = entrada.readLine()) != null) {
                String temp[] = linha.split(" ");
                int cont;
                String palavra = "";
                for (String t : temp) {
                    cont = 0;
                    for (String p : morse) {
                        if (t.equals(p)) {
                            palavra += (char) (65 + cont);
                            break;
                        }
                        cont++;
                    }
                }
                saida.println(palavra);
                if (linha.equals("..-. .. --")) {
                    break;
                }
            }
            entrada.close();
            saida.close();
        }
    }
}