1st riff

e--------------------------------------------------------------------------------
B--------------------------------------------------------------------------------
G--------------------------------------------------------------------------------
D--------------------------------------------------------------------------------  
A-9P5-9P5-9P5-9P5-7-7-7-7-5-5-5-5-5-5-5-5-9P5-9P5-9P5-9P5-7-7-7-7-5-5-5-5-7-7-7-7
E-------------------5-5-5-3-3-3-3-3-3-3-3-------------------5-5-5-3-3-3-3-7-7-7-7

OR

e--------------------------------------------------------------------------------
B--------------------------------------------------------------------------------
G--------------------------------------------------------------------------------
D-4PO-4PO-4PO-4PO-2-2-2-2-----------------4PO-4PO-4PO-4PO-2-2-2-2---------2-2-2-2
A-------------------O-O-O-5-5-5-5-5-5-5-5-------------------O-O-O-5-5-5-5-O-O-O-O
E-------------------------3-3-3-3-3-3-3-3-------------------------3-3-3-3--------

2nd fiff

e---------------------------------
B---------------------------------
G---------------------------------
D-7-7-------------7-7-------------
A-5-5-5-5-7-7-7-7-5-5-5-5-5-5-5-5-
E-----3-3-5-5-5-5-----3-3-3-3-3-3-

3rd riff

e---------------------------------------------------------------------------------
B---------------------------------------------------------------------------------
G---------------------------------------------------------------------------------
D---------7-7-7-7-------------------------7-7-7-7---------------------------------
A-7-7-7-7-5-5-5-5-7-7-7-7-5-5-5-5-7-7-7-7-5-5-5-5-5-5-5-5-5-5-5-5-7-7-7-7-7-7-7-7-
E-5-5-5-5---------5-5-5-5-3-3-3-3-5-5-5-5---------3-3-3-3-3-3-3-3-5-5-5-5-5-5-5-5-

so it goes
riff 1 2X
riff 2 2X
riff 3 1X
riff 1 2X
riff 2 2x 
riff 3 1X
AnD ThaTs It