Small programming challenge: permutations of a set

[Tom Wilcox]

Hi all,

Here's a simple challenge:

Can you write a Logo program that takes a word and then outputs all
permutations of its characters as a list of words? For instance, if
you give the program "123 then it would output something like [123 132
213 231 312 321]. Each item in the output should be unique, so "112
would generate a list similar to [112 121 211].

Alternately, if you know where I might find code that does this, could
you please direct me to the site?

I do have a solution in place, using Brian Harvey's higher-order
functions, such as map and reduce, but I would be very interested to
see how others solve this programming puzzle. I will exchange my
solution for yours! :-)