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:
input_string = input() #taking the user input of a string
input_string = input_string.lower() #Converting the input string into lower case since the answer must be in lowercase
output_string = "" #Empty string for output purpose
length = len(input_string) # taking the length of the string in a variable named length
for i in range(length) : # from 0 to length-1 i.e, first to last of string
    if input_string[i] in ['a','e','i','o','u','y']: #if the character is a vowel then continue : pass it
            continue
    else :
        output_string += '.' + input_string[i]  # Else append that character to the output string with a period before it.
print(output_string) #final printing out the lowercased output.