Problem: Petya started to attend programming lessons. On the first lesson his task was to write a simple program. The program was supposed to do the following: in the given string, consisting if uppercase and lowercase Latin letters, it: 

  * deletes all the vowels, 
  * inserts a character "." before each consonant, 
  * replaces all uppercase consonants with corresponding lowercase ones. 



Vowels are letters "A", "O", "Y", "E", "U", "I", and the rest are consonants. The program's input is exactly one string, it should return the output as a single string, resulting after the program's processing the initial string.

Help Petya cope with this easy task.

Input

The first line represents input string of Petya's program. This string only consists of uppercase and lowercase Latin letters and its length is from 1 to 100, inclusive.

Output

Print the resulting string. It is guaranteed that this string is not empty.

Examples

Input

tour


Output

.t.r


Input

Codeforces


Output

.c.d.f.r.c.s


Input

aBAcAba


Output

.b.c.b

Solution (in JAVA):

Solution:
import java.io.*;
import java.util.HashSet;
import java.util.Scanner;
import java.util.Set;
import java.util.StringTokenizer;

public class Main {

    public static void main(String[] args) {
        MyScanner sc = new MyScanner();
        out = new PrintWriter(new BufferedOutputStream(System.out));

        String s = sc.nextLine();
        StringBuilder sb = new StringBuilder("");

        Set<Character> set = new HashSet<>();
        set.add('A');
        set.add('E');
        set.add('O');
        set.add('Y');
        set.add('U');
        set.add('I');



        for(int i=0; i<s.length(); i++) {
            char c = s.charAt(i);
            if(!set.contains(Character.toUpperCase(c))) {
                sb.append('.');
                sb.append(Character.toLowerCase(c));
            }

        }
        System.out.println(sb.toString());
        out.close();
    }


    public static PrintWriter out;
    //-----------MyScanner class for faster input----------
    public static class MyScanner {
        BufferedReader br;
        StringTokenizer st;

        public MyScanner() {
            br = new BufferedReader(new InputStreamReader(System.in));
        }

        String next() {
            while (st == null || !st.hasMoreElements()) {
                try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            return st.nextToken();
        }

        int nextInt() {
            return Integer.parseInt(next());
        }

        long nextLong() {
            return Long.parseLong(next());
        }

        double nextDouble() {
            return Double.parseDouble(next());
        }

        String nextLine(){
            String str = "";
            try {
                str = br.readLine();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return str;
        }

    }

}


//    public static void main(String[] args) {
//        Scanner sc = new Scanner(System.in);
//        try {
//            // 2 / 2 = 1 which is not even!!!
//            int w = sc.nextInt();
//            if(w % 2 == 0 && w != 2) {
//                System.out.println("YES");
//            } else {
//                System.out.println("NO");
//            }
//        } catch (Exception e) {
//            System.out.println(e.toString());
//        }
//        sc.close();
//    }

//    public static void main(String[] args) {
//        MyScanner sc = new MyScanner();
//        out = new PrintWriter(new BufferedOutputStream(System.out));
//        int n = sc.nextInt();
//        StringBuilder sb = new StringBuilder("");
//        for(int i=0; i<n; i++) {
//            sb.append(sc.nextLine());
//            if(sb.length() > 10) {
//                int middle = sb.length() - 2;
//                String middleStr = Integer.toString(middle);
//                sb.replace(1, sb.length() - 1, middleStr);
//                System.out.println(sb.toString());
//                //sb = new StringBuilder("");
//                sb.setLength(0);
//            } else {
//                System.out.println(sb.toString());
//                //sb = new StringBuilder("");
//                sb.setLength(0);
//            }
//        }
//
//        out.close();
//    }


//        MyScanner sc = new MyScanner();
//        out = new PrintWriter(new BufferedOutputStream(System.out));
//        int n = sc.nextInt();
//        int m = sc.nextInt();
//        int a = sc.nextInt();
//        double x = (double) n;
//        double y = (double) m;
//        System.out.println(Long.MAX_VALUE);
//        System.out.println((long) (Math.ceil(x / a) * Math.ceil(y / a)));
//        out.close();



//        MyScanner sc = new MyScanner();
//        out = new PrintWriter(new BufferedOutputStream(System.out));
//        int n = sc.nextInt();
//        int count = 0;
//        for(int i=0; i<n; i++) {
//            int Petya = sc.nextInt();
//            int Vasya = sc.nextInt();
//            int Tonya = sc.nextInt();
//
//            if(Petya + Vasya + Tonya >= 2) { // at least 2
//                count++;
//            }
//        }
//        System.out.println(count);
//
//
//        out.close();



//    public static void main(String[] args) {
//        MyScanner sc = new MyScanner();
//        out = new PrintWriter(new BufferedOutputStream(System.out));
//
//        int n = sc.nextInt();
//        int kThPlace = sc.nextInt(); // is 1 indexed
//        int count = 0;
//        int[] ar = new int[n];
//        for(int i=0; i<n; i++) {
//            ar[i] = sc.nextInt();
//        }
//        for(int i=0; i<n; i++) {
//            if(ar[i] == 0) {
//                continue;
//            }
//            if(i < kThPlace - 1) {
//                count++;
//            } else {
//                if(ar[i] == ar[kThPlace - 1]) {
//                    count++;
//                }
//            }
//        }
//        System.out.println(count);
//        out.close();
//    }