Acting on an anonymous phone call, the police raid a house to arrest a
suspected murderer. They don't know what he looks like but they know his
name is John and that he is inside the house. The police bust in on a
carpenter, a lorry driver, a mechanic and a fireman all playing poker.
Without hesitation or communication of any kind, they immediately arrest
the fireman. How do they know they've got their man?
Solution: http://pastebin.com/Ypey6Q4w
Solution: http://pastebin.com/Ypey6Q4w
