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:
def vowel(ch):
    vowel_characters = ['a', 'e', 'i', 'o', 'u', 'y', 'A', 'E', 'I', 'O', 'U', 'Y']
    return ch in vowel_characters
 
 
def string_task(string):
    new_string = ''
    for ch in string:
        if vowel(ch):   # Check If Character Is Vowel Then Skip This Character
            continue
        elif 65 <= ord(ch) <= 90:
            # Check If Ascii Code For Character Is For Capital Characters Then Add 32 For Code To Convert It To Small
            # Characters
            ch = chr(ord(ch) + 32)
        new_string += '.' + ch
    return new_string
    
    
def main():
    string = input()
    print(string_task(string))
    
    
main()