Question for Brian McGahan and others

From: nenad pudar (nenad.pudar@gmail.com)
Date: Wed Dec 21 2005 - 22:57:22 GMT-3

Hi Brian
I have the question regarding your paper on Computing Access-List and
Wildcard Pairs

There you have

 00000000
00000100
00100000
00100100
_________
XOR
00100100=36****

I cannot get this trying in any way (for third column)

1) (((0 XOR 0) XOR 1) XOR 1)= ((0 XOR 1) XOR 1)= 1 XOR 1 =0

2) (0 XOR 0) XOR (1 XOR 1) = 0 XOR 0 = 0

I am doing something wrong or there is some other trick here ?

thanks
nenad

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