Scrambled words are legible as long as first and last letters are in place

From Joi Ito's Web:


Aoccdrnig to rscheearch at an Elingsh uinervtisy, it deosn't mttaer
in waht oredr the ltteers in a wrod are, olny taht the frist and
lsat ltteres are at the rghit pcleas. The rset can be a toatl mses
and you can sitll raed it wouthit a porbelm. Tihs is bcuseae we do
not raed ervey lteter by ilstef, but the wrod as a wlohe.

http://joi.ito.com/archives/2003/09/14/ordering_of_letters_dont_matter.html

A perl script to scrmable any file