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:
vocales="AEIOUY"
def F(entrada):
    salida=""
    for i in range(len(entrada)): 
    #Comprobar si es una vocal y si es asi continuar al siguiente caracter 
        if entrada[i].upper() in vocales: continue #si se sobrevive a la condicion anterior es una consonante 
        salida+='.' 
    #comprobar si es una consonante matyuscula y remplazarla por la misma minuscula 
        if entrada[i].upper()==entrada[i]: salida+=entrada[i].lower() 
    #Sino es consonante mayuscula es minuscula y se pasa igual 
        else: salida+=entrada[i] 
    return salida
 

print(F(input()))