me and my friend and teacher and another kid played this at my graduation and we got a standing ovation for it(i think) so it seemed like it was right.

riff 1 
------------------|------------------|
------3-------3---|------3-------3---|
--------0-------0-|--------0---2---2-|
----0-------0-----|----0-----0-------|
------------------|--3---------------|
--3-------3-------|------------------|

riff 2  
--------------------------|
--00000-33333-33333-33333-|
--00000-22222-00000-00000-|
--22222-00000-xxxxx-00000-|
--22222-00000-22222-xxxxx-|
--00000-------------33333-|

riff 3
--------------------------------22222-------|
--00000-33333-00000-33333-00000-33333-33333-|
--00000-00000-00000-00000-00000-22222-00000-|
--22222-00000-22222-00000-22222-00000-00000-|
--22222-xxxxx-22222-xxxxx-22222-------xxxxx-|
--00000-33333-00000-33333-00000-------33333-|

riff 4
--------------------------|
--33333-33333-33333-33333-|
--00000-00000-00000-22222-|
--00000-00000-xxxxx-00000-|
--xxxxx-xxxxx-33333-------|
--33333-33333-------------|


order:

riff 1  4x
riff 2  2x
riff 3  1x
riff 4  4x
riff 2  2x
riff 3  1x
riff 4  6 or 8x i can't remember
riff 2  2x
riff 3  1x
riff 4  2x
riff 3  1x
riff 1  2x

then end on:

-------|
------3|
-----0-|
----0--|
---x---|
--3----|