LAB11

http://s9726324.blogspot.com/2011/03/hw3.html?showComment=1300100867162#c5693412359976136639

http://ss9626260.blogspot.com/2011/03/homework-3.html?showComment=1300100994778#c8876487580855005884

http://s9726348.blogspot.com/2011/03/hw3.html?showComment=1300101080702#c7273825701132984623

http://s9726356.blogspot.com/2011/03/homework-3.html?showComment=1300101217889#c7972918762943107457

http://badtzmarubad.blogspot.com/2011/03/hw3.html?showComment=1300101275415#c8296372311894828037