As you may (or may not) know, the human brain is very good at filtering stuff out. Making things easier for us. Take the next sentence for example:
Tihs is a vrey esay seetcnne wtih smoe lnog wdros and smoe smlelar wrods
You read that pretty easily didn't you?
Now for the challenge: Write a program that takes an input (a sentence) and turns it into a sentence similar to the one above. The first and last letter of a word can not be changed, and the ones in the middle should be shuffled.