I wrote a program in which the user may enter any string. It should:

1. Delete all the vowels.
2. Insert the character "." before each consonant.
3. Replaces all uppercase consonants with corresponding lowercase ones.

Here is the code I wrote:

```
s=raw_input()
k=s.lower()
listaa=[]
for x in k:
    listaa.append(x)
    if x=='a':
    listaa.remove('a')
    if  x=='o':
        listaa.remove('o')
    if x=='y':
        listaa.remove('y')
    if x=='e':
        listaa.remove('e')
    if x=='u':
        listaa.remove('u')
    if x=='i':
        listaa.remove('i')
for a in listaa:
print '.%s'%(a),

```

This code works fine, but for example if I use the input `tour`, the output is `.t .r`. Although this is right, it's not exactly what i want. I want to remove spaces between them. I want output that looks like: `.t.r`

How do I do this?