lab8

1.
http://s9826145.blogspot.com/2011/02/homework-2.html?showComment=1299501687884#c8960227580100117504

2.
http://linzero7.blogspot.com/2011/03/homework-2.html?showComment=1299502093748#c5483753286697515491

3.
http://s9626113.blogspot.com/2011/03/homework2.html?showComment=1299502323130#c8519677131214963837

4.
http://9626232.blogspot.com/2011/03/homework-2.html?showComment=1299502734969#c1512470054158174541

5.
http://s9526265.blogspot.com/2011/03/hw02.html?showComment=1299503253842#c1323861223908861772