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.