Vyom has a crush in the college. On Valentine's day he met her and as she was having a hard time solving a problem so when she met him, she asked the same problem to him. To impress her Vyom needs to solve the problem but he cannot solve it on his own so he needs your help.

The question is that you are given a string containing only english alphabets (can contain both uppercase and lowercase characters eg. "AsggGh"). Now your program needs to do the following tasks:
* delete all the vowels,
* inserts a character "." before each consonant,
* replaces all uppercase consonants with corresponding lowercase ones.

Vowels are letters 'A', 'O', 'E', 'U', 'I', 'a', 'o', 'e', 'u' and 'i' and the rest are consonants.

INPUT

The first and only line of input contains a string S.

OUTPUT

Print a single string T, obtained by applying all the operations on string S.

CONSTRAINTS

Length of the given string is from 1 to 100000, inclusive.