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:
#A string is read
string = input().lower()

#a string is change to string format
string = str(string)

#A new string is initialized
newString = ""

#vowels are set in the array and the special character to add
vowels = "aeiouy"
char = "."

#a for cycle is set from 0 to the string end
for i in range(0, len(string)):

    #rewrites the cycle without vowels and adding a . before consonants
    if string[i] not in vowels:
        newString += char
        newString += string[i]

print(newString)