2680 challenge

From: The Last Danish Pastry (clivet_at_gmail.com)
Date: 01/23/05 

Date: Sun, 23 Jan 2005 12:54:19 -0000

The text file
http://www.pisquaredoversix.force9.co.uk/2680.txt
consists of 2680 lines. Each line contains five integers. Each of these
integers is in the range 0 to 244. The challenge is to select 49 of the 2680
lines in such a way that each of the numbers from 0 to 244 is present in the
selection.

I do not know if there is a solution to this challenge. 

-- 
Clive Tooth
http://www.clivetooth.dk