Redirect extension examples

Re: http://disq.us/p/1yo7azr

Need to exclude (not redirect):

https://web.archive.org/web/20180621011659/https://snippets.mozilla.com/
https://web.archive.org/web/20141203233155/https://snippets.mozilla.com/?page=2
https://web.archive.org/web/20141203233155/https://snippets.mozilla.com/?page=3

Need to redirect:

https://web.archive.org/web/20180621011659/https://snippets.mozilla.com/show/7857/
https://web.archive.org/web/20180621011659/https://snippets.mozilla.com/show/7860/
https://web.archive.org/web/20180621011659/https://snippets.mozilla.com/show/7870/
https://web.archive.org/web/20180621011659/https://snippets.mozilla.com/show/7891/
https://web.archive.org/web/20180621011659/https://snippets.mozilla.com/show/7961/