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.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class stringtask {	
	
	//main method, this is where all the junk is happening
	public static void main(String[] args) throws IOException{
		
		BufferedReader r = new BufferedReader(new InputStreamReader(System.in));
		String out = ""; //final output
		String vowels = "aoyeuiAOYEUI";//given list of vowels (include captials, to make life easier)
		
		String word = r.readLine(); //getting the word
		
		for(int i = 0; i < word.length(); i++){ //important loop, basically 99% of the program
			boolean m = false; //checking if a vowel
			for(int a = 0; a < vowels.length(); a++)
				if(word.charAt(i) == vowels.charAt(a)) //if letter in word, matches that of a vowel, vowel = true
					m = true;
			if(!m){ //if it's not a vowel
				out +="."; //add dot before constonant
				if((int)word.charAt(i) <= 90 && (int)word.charAt(i) >= 65){ //if it's uppercased (ascii)
					out += (char)(word.charAt(i) + 32); //add 32 to make it lowercased
				}
				else //if it's not uppercased, just add it.
					out += word.charAt(i);
			}		
		}
		System.out.println(out); //finally print the string
	}
}