I was jumped by the notorious X brothers and they stole 3 letters from the URL of next level. They left a mark at the position where the letters used to belong:
http://tf2r.com/khcvXXX.html
Luckily I hashed the link just before they grabed the letters.
MD5-Hash of just the 3 letters(easy way): 46d658e390d31c2e2e59945f9c2d7c9d
MD5-Hash of the whole URL(hard way): 41c71dbaae7b3063332850bdbfaafbdf

Some tips:
Remember: only lowercase letters and numbers
You can of course write you own solution, but there already exist preexisting solutions: hashcat, John the Ripper etc.
Easy and hard lead to the same raffle. So only do it the hard way if you are keen.
If you want to go the hard way and use a password cracker, the keyword is mangling.

Todays lesson:
Use strong passwords! You should have seen how easy it is to crack simple hashes and you never know what websites use to store you passwords.