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 PYTHON3):

Solution:

vowels = ['a','A','e','E','i','I','o','O','u','U','y','Y']

def del_vowels(string):
    for char in string:
        if char in vowels:
            string =  string.replace(char,'')
    return string

def insert_char(string):
    chars = [char for char in string]
    for i in range(0, len(chars)):
        if chars[i] not in vowels:
            chars[i] = '.'+chars[i]
    retstring = ''
    for char in chars:
        retstring += char
    return retstring
                   
        
                   

def replace_upper(string):
    for char in string:
        if char not in vowels:
            if char.upper() == char:
                string = string.replace(char, char.lower())
    return string

def fix(string):
    string = del_vowels(string)
    string = insert_char(string)
    string = replace_upper(string)
    return string

def doit():
    string = input("")
    print(fix(string))

doit()