Zend certified PHP/Magento developer

Regex: Concatenate/connect the letters in words separated by space in html tag

I have this html tag:

<title>c o n n e c t s t h e l e t t e r s i n w o r d s</title>

Must Become:

<title>connects the letters in words</title>

I try this, but doesn’t work:

FIND: (<title>)(.+?s+.+?)(</title>)

REPLACE BY: 123